Updated 10 h ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,764exploited flaws on CISA’s list

35added in the last 30 days

457new WordPress flaws this week

390,525entries in the database

98 results · page 2 of 2

Aug 21, 2024Microsoft Exchange Server Information Disclosure VulnerabilityCVE-2021-31196 · Email & office · Microsoft · reported by secure@microsoft.comExploitedHigh 7.2
Microsoft Exchange Server contains an information disclosure vulnerability that allows for remote code execution.
Product
Exchange Server
On CISA’s list since
Aug 21, 2024 (federal fix deadline Sep 11, 2024)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com portal.msrc.microsoft.com
Apr 11, 2024D-Link Multiple NAS Devices Use of Hard-Coded Credentials VulnerabilityCVE-2024-3272 · Network & remote access · D-Link · reported by VulDBExploitedCritical 9.8
D-Link DNS-320L, DNS-325, DNS-327L, and DNS-340L contains a hard-coded credential that allows an attacker to conduct authenticated command injection, leading to remote, unauthorized code execution.
Product
Multiple NAS Devices
On CISA’s list since
Apr 11, 2024 (federal fix deadline May 2, 2024)
What to do
Attackers are using this now. Install D-Link’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog github.com supportannouncement.us.dlink.com
Mar 26, 2024Microsoft SharePoint Server Code Injection VulnerabilityCVE-2023-24955 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7.2
Microsoft SharePoint Server contains a code injection vulnerability that allows an authenticated attacker with Site Owner privileges to execute code remotely.
Product
SharePoint Server
On CISA’s list since
Mar 26, 2024 (federal fix deadline Apr 16, 2024)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com msrc.microsoft.com
Feb 15, 2024Microsoft Exchange Server Privilege Escalation VulnerabilityCVE-2024-21410 · Email & office · Microsoft · reported by secure@microsoft.comExploitedCritical 9.8
Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation.
Product
Exchange Server
On CISA’s list since
Feb 15, 2024 (federal fix deadline Mar 7, 2024)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com msrc.microsoft.com
Jan 10, 2024Microsoft SharePoint Server Privilege Escalation VulnerabilityCVE-2023-29357 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareCritical 9.8
Microsoft SharePoint Server contains an unspecified vulnerability that allows an unauthenticated attacker, who has gained access to spoofed JWT authentication tokens, to use them for executing a network attack. This attack bypasses authentication, enabling the attacker to gain administrator privileges.
Product
SharePoint Server
On CISA’s list since
Jan 10, 2024 (federal fix deadline Jan 31, 2024)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com msrc.microsoft.com
Nov 30, 2023ownCloud graphapi Information Disclosure VulnerabilityCVE-2023-49103 · Other software · ownCloud · reported by MITREExploitedCritical 10
ownCloud graphapi contains an information disclosure vulnerability that can reveal sensitive data stored in phpinfo() via GetPhpInfo.php, including administrative credentials.
Product
ownCloud graphapi
On CISA’s list since
Nov 30, 2023 (federal fix deadline Dec 21, 2023)
What to do
Attackers are using this now. Install ownCloud’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog owncloud.com owncloud.org
Sep 28, 2023Red Hat JBoss RichFaces Framework Expression Language Injection VulnerabilityCVE-2018-14667 · Other software · Red Hat · reported by Red HatExploitedCritical 9.8
Red Hat JBoss RichFaces Framework contains an expression language injection vulnerability via the UserResource resource. A remote, unauthenticated attacker could exploit this vulnerability to execute malicious code using a chain of Java serialized objects via org.ajax4jsf.resource.UserResource$UriData.
Product
JBoss RichFaces Framework
On CISA’s list since
Sep 28, 2023 (federal fix deadline Oct 19, 2023)
What to do
Attackers are using this now. Install Red Hat’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com seclists.org
Aug 16, 2023Citrix Content Collaboration ShareFile Improper Access Control VulnerabilityCVE-2023-24489 · Network & remote access · Citrix · reported by secure@citrix.comExploitedCritical 9.8
Citrix Content Collaboration contains an improper access control vulnerability that could allow an unauthenticated attacker to remotely compromise customer-managed ShareFile storage zones controllers.
Product
Content Collaboration
On CISA’s list since
Aug 16, 2023 (federal fix deadline Sep 6, 2023)
What to do
Attackers are using this now. Install Citrix’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com support.citrix.com
May 12, 2023Red Hat Polkit Incorrect Authorization VulnerabilityCVE-2021-3560 · Other software · Red Hat · reported by Red HatExploitedHigh 7.8
Red Hat Polkit contains an incorrect authorization vulnerability through the bypassing of credential checks for D-Bus requests, allowing for privilege escalation.
Product
Polkit
On CISA’s list since
May 12, 2023 (federal fix deadline Jun 2, 2023)
What to do
Attackers are using this now. Install Red Hat’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
Jan 10, 2023Microsoft Exchange Server Privilege Escalation VulnerabilityCVE-2022-41080 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 8.8
Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation. This vulnerability is chainable with CVE-2022-41082, which allows for remote code execution.
Product
Exchange Server
On CISA’s list since
Jan 10, 2023 (federal fix deadline Jan 31, 2023)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com msrc.microsoft.com
Sep 30, 2022Microsoft Exchange Server Remote Code Execution VulnerabilityCVE-2022-41082 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 8
Microsoft Exchange Server contains an unspecified vulnerability that allows for authenticated remote code execution. Dubbed "ProxyNotShell," this vulnerability is chainable with CVE-2022-41040 which allows for the remote code execution.
Product
Exchange Server
On CISA’s list since
Sep 30, 2022 (federal fix deadline Oct 21, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com packetstormsecurity.com
Sep 30, 2022Microsoft Exchange Server Server-Side Request Forgery VulnerabilityCVE-2022-41040 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 8.8
Microsoft Exchange Server allows for server-side request forgery. Dubbed "ProxyNotShell," this vulnerability is chainable with CVE-2022-41082 which allows for remote code execution.
Product
Exchange Server
On CISA’s list since
Sep 30, 2022 (federal fix deadline Oct 21, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com packetstormsecurity.com
Jul 29, 2022Atlassian Questions For Confluence App Hard-coded Credentials VulnerabilityCVE-2022-26138 · Websites & servers · Atlassian · reported by security@atlassian.comExploitedCritical 9.8
Atlassian Questions For Confluence App has hard-coded credentials, exposing the username and password in plaintext. A remote unauthenticated attacker can use these credentials to log into Confluence and access all content accessible to users in the confluence-users group.
Product
Confluence
On CISA’s list since
Jul 29, 2022 (federal fix deadline Aug 19, 2022)
What to do
Attackers are using this now. Install Atlassian’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog confluence.atlassian.com jira.atlassian.com
Jun 27, 2022Red Hat Polkit Out-of-Bounds Read and Write VulnerabilityCVE-2021-4034 · Other software · Red Hat · reported by Red HatExploitedRansomwareHigh 7.8
The Red Hat polkit pkexec utility contains an out-of-bounds read and write vulnerability that allows for privilege escalation with administrative rights.
Product
Polkit
On CISA’s list since
Jun 27, 2022 (federal fix deadline Jul 18, 2022)
What to do
Attackers are using this now. Install Red Hat’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
May 25, 2022Red Hat JBoss Information Disclosure VulnerabilityCVE-2010-1428 · Other software · Red Hat · reported by Red HatExploitedRansomwareHigh 7.5
Unauthenticated access to the JBoss Application Server Web Console (/web-console) is blocked by default. However, it was found that this block was incomplete, and only blocked GET and POST HTTP verbs. A remote attacker could use this flaw to gain access to sensitive information.
Product
JBoss
On CISA’s list since
May 25, 2022 (federal fix deadline Jun 15, 2022)
What to do
Attackers are using this now. Install Red Hat’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog marc.info secunia.com
May 25, 2022Red Hat JBoss Authentication Bypass VulnerabilityCVE-2010-0738 · Other software · Red Hat · reported by Red HatExploitedRansomwareMedium 5.3
The JMX-Console web application in JBossAs in Red Hat JBoss Enterprise Application Platform performs access control only for the GET and POST methods, which allows remote attackers to send requests to this application's GET handler by using a different method.
Product
JBoss
On CISA’s list since
May 25, 2022 (federal fix deadline Jun 15, 2022)
What to do
Attackers are using this now. Install Red Hat’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog marc.info public.support.unisys.com
May 23, 2022WhatsApp Cross-Site Scripting VulnerabilityCVE-2019-18426 · Other software · Meta Platforms · reported by cve-assign@fb.comExploitedHigh 8.2
A vulnerability in WhatsApp Desktop when paired with WhatsApp for iPhone allows cross-site scripting and local file reading.
Product
WhatsApp
On CISA’s list since
May 23, 2022 (federal fix deadline Jun 13, 2022)
What to do
Attackers are using this now. Install Meta Platforms’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com facebook.com
Apr 19, 2022WhatsApp VOIP Stack Buffer Overflow VulnerabilityCVE-2019-3568 · Other software · Meta Platforms · reported by cve-assign@fb.comExploitedCritical 9.8
A buffer overflow vulnerability in WhatsApp VOIP stack allowed remote code execution via specially crafted series of RTCP packets sent to a target phone number.
Product
WhatsApp
On CISA’s list since
Apr 19, 2022 (federal fix deadline May 10, 2022)
What to do
Attackers are using this now. Install Meta Platforms’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com facebook.com
Mar 25, 2022Citrix ShareFile Improper Access Control VulnerabilityCVE-2021-22941 · Network & remote access · Citrix · reported by support@hackerone.comExploitedRansomwareCritical 9.8
Improper Access Control in Citrix ShareFile storage zones controller may allow an unauthenticated attacker to remotely compromise the storage zones controller.
Product
ShareFile
On CISA’s list since
Mar 25, 2022 (federal fix deadline Apr 15, 2022)
What to do
Attackers are using this now. Install Citrix’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog support.citrix.com support.citrix.com
Mar 3, 2022Microsoft Exchange Server Privilege Escalation VulnerabilityCVE-2018-8581 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7.4
A privilege escalation vulnerability exists in Microsoft Exchange Server. An attacker who successfully exploited this vulnerability could attempt to impersonate any other user of the Exchange server.
Product
Exchange Server
On CISA’s list since
Mar 3, 2022 (federal fix deadline Mar 17, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com securitytracker.com
Mar 3, 2022ChakraCore Scripting Engine Type Confusion VulnerabilityCVE-2018-8298 · Other software · ChakraCore · reported by secure@microsoft.comExploitedHigh 7.5
The ChakraCore scripting engine contains a type confusion vulnerability which can allow for remote code execution.
Product
ChakraCore scripting engine
On CISA’s list since
Mar 3, 2022 (federal fix deadline Mar 17, 2022)
What to do
Attackers are using this now. Install ChakraCore’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com portal.msrc.microsoft.com
Mar 3, 2022Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service VulnerabilityCVE-2018-0159 · Network & remote access · Cisco · reported by psirt@cisco.comExploitedHigh 7.5
A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial-of-service (DoS) condition.
Product
IOS Software and Cisco IOS XE Software
On CISA’s list since
Mar 3, 2022 (federal fix deadline Mar 17, 2022)
What to do
Attackers are using this now. Install Cisco’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com securitytracker.com
Mar 3, 2022Cisco IOS and XE Software Internet Key Exchange Memory Leak VulnerabilityCVE-2018-0158 · Network & remote access · Cisco · reported by psirt@cisco.comExploitedHigh 8.6
A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial-of-service (DoS) condition.
Product
IOS Software and Cisco IOS XE Software
On CISA’s list since
Mar 3, 2022 (federal fix deadline Mar 17, 2022)
What to do
Attackers are using this now. Install Cisco’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com securitytracker.com
Mar 3, 2022Cisco IOS and IOS XE Software Internet Key Exchange Denial-of-Service VulnerabilityCVE-2017-12237 · Network & remote access · Cisco · reported by psirt@cisco.comExploitedHigh 7.5
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS and Cisco IOS XE could allow an unauthenticated, remote attacker to cause high CPU utilization, traceback messages, or a reload of an affected device that leads to a denial of service.
Product
IOS and IOS XE Software
On CISA’s list since
Mar 3, 2022 (federal fix deadline Mar 24, 2022)
What to do
Attackers are using this now. Install Cisco’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com securitytracker.com
Mar 3, 2022Microsoft Windows Kernel Exception Handler VulnerabilityCVE-2010-0232 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
The kernel in Microsoft Windows, when access to 16-bit applications is enabled on a 32-bit x86 platform, does not properly validate certain BIOS calls, which allows local users to gain privileges.
Product
Windows
On CISA’s list since
Mar 3, 2022 (federal fix deadline Mar 24, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog blogs.technet.com lists.immunitysec.com
Jan 18, 2022Microsoft Exchange Server Information DisclosureCVE-2021-33766 · Email & office · Microsoft · reported by secure@microsoft.comExploitedHigh 7.3
Microsoft Exchange Server contains an information disclosure vulnerability which can allow an unauthenticated attacker to steal email traffic from target.
Product
Exchange Server
On CISA’s list since
Jan 18, 2022 (federal fix deadline Feb 1, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com portal.msrc.microsoft.com
Dec 10, 2021Apache Solr DataImportHandler Code Injection VulnerabilityCVE-2019-0193 · Websites & servers · Apache · reported by security@apache.orgExploitedHigh 7.2
The optional Apache Solr module DataImportHandler contains a code injection vulnerability.
Product
Solr
On CISA’s list since
Dec 10, 2021 (federal fix deadline Jun 10, 2022)
What to do
Attackers are using this now. Install Apache’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog issues.apache.org lists.apache.org
Dec 10, 2021Red Hat JBoss Application Server Remote Code Execution VulnerabilityCVE-2017-12149 · Other software · Red Hat · reported by Red HatExploitedRansomwareCritical 9.8
The JBoss Application Server, shipped with Red Hat Enterprise Application Platform 5.2, allows an attacker to execute arbitrary code via crafted serialized data.
Product
JBoss Application Server
On CISA’s list since
Dec 10, 2021 (federal fix deadline Jun 10, 2022)
What to do
Attackers are using this now. Install Red Hat’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com access.redhat.com
Dec 10, 2021Red Hat Linux JBoss Seam 2 Remote Code Execution VulnerabilityCVE-2010-1871 · Other software · Red Hat · reported by MITREExploitedHigh 8.8
JBoss Seam 2 (jboss-seam2), as used in JBoss Enterprise Application Platform 4.3.0 for Red Hat Linux, allows attackers to perform remote code execution. This vulnerability can only be exploited when the Java Security Manager is not properly configured.
Product
JBoss Seam 2
On CISA’s list since
Dec 10, 2021 (federal fix deadline Jun 10, 2022)
What to do
Attackers are using this now. Install Red Hat’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog archives.neohapsis.com redhat.com
Nov 17, 2021Microsoft Exchange Server Remote Code Execution VulnerabilityCVE-2021-42321 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 8.8
An authenticated attacker could leverage improper validation in cmdlet arguments within Microsoft Exchange and perform remote code execution.
Product
Exchange
On CISA’s list since
Nov 17, 2021 (federal fix deadline Dec 1, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com packetstormsecurity.com
Nov 3, 2021Microsoft Exchange Server Privilege Escalation VulnerabilityCVE-2021-34523 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareCritical 9
Microsoft Exchange Server contains an unspecified vulnerability that allows for privilege escalation.
Product
Exchange Server
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com packetstormsecurity.com
Nov 3, 2021Microsoft Exchange Server Remote Code Execution VulnerabilityCVE-2020-17144 · Email & office · Microsoft · reported by secure@microsoft.comExploitedHigh 8.4
Microsoft Exchange Server improperly validates cmdlet arguments which allow an attacker to perform remote code execution.
Product
Exchange Server
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Cisco IOS XR Software DVMRP Memory Exhaustion VulnerabilityCVE-2020-3566 · Network & remote access · Cisco · reported by psirt@cisco.comExploitedHigh 8.6
Cisco IOS XR Distance Vector Multicast Routing Protocol (DVMRP) incorrectly handles Internet Group Management Protocol (IGMP) packets. Exploitation could allow an unauthenticated, remote attacker to immediately crash the IGMP process or make it consume available memory and eventually crash.
Product
IOS XR
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Cisco’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog tools.cisco.com tools.cisco.com
Nov 3, 2021Cisco IOS XR Software DVMRP Memory Exhaustion VulnerabilityCVE-2020-3569 · Network & remote access · Cisco · reported by psirt@cisco.comExploitedHigh 8.6
Cisco IOS XR Distance Vector Multicast Routing Protocol (DVMRP) incorrectly handles Internet Group Management Protocol (IGMP) packets. Exploitation could allow an unauthenticated, remote attacker to immediately crash the IGMP process or make it consume available memory and eventually crash.
Product
IOS XR
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Cisco’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog tools.cisco.com tools.cisco.com
Nov 3, 2021EyesOfNetwork Use of Hard-Coded Credentials VulnerabilityCVE-2020-8657 · Other software · EyesOfNetwork · reported by MITREExploitedCritical 9.8
EyesOfNetwork contains a use of hard-coded credentials vulnerability, as it uses the same API key by default. Exploitation allows an attacker to calculate or guess the admin access token.
Product
EyesOfNetwork
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install EyesOfNetwork’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com github.com
Nov 3, 2021Microsoft Enhanced Cryptographic Provider Privilege Escalation VulnerabilityCVE-2021-31201 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedMedium 5.2
Microsoft Enhanced Cryptographic Provider contains an unspecified vulnerability that allows for privilege escalation.
Product
Enhanced Cryptographic Provider
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog portal.msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Enhanced Cryptographic Provider Privilege Escalation VulnerabilityCVE-2021-31199 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedMedium 5.2
Microsoft Enhanced Cryptographic Provider contains an unspecified vulnerability that allows for privilege escalation.
Product
Enhanced Cryptographic Provider
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog portal.msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Exchange Server Validation Key Remote Code Execution VulnerabilityCVE-2020-0688 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 8.8
Microsoft Exchange Server Validation Key fails to properly create unique keys at install time, allowing for remote code execution.
Product
Exchange Server
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
Nov 3, 2021Microsoft Exchange Server Remote Code Execution VulnerabilityCVE-2021-34473 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareCritical 9.1
Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution.
Product
Exchange Server
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com packetstormsecurity.com
Nov 3, 2021Microsoft Exchange Server Security Feature Bypass VulnerabilityCVE-2021-31207 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareMedium 6.6
Microsoft Exchange Server contains an unspecified vulnerability that allows for security feature bypass.
Product
Exchange Server
On CISA’s list since
Nov 3, 2021 (federal fix deadline Nov 17, 2021)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Exchange Server Remote Code Execution VulnerabilityCVE-2021-26855 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareCritical 9.1
Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution. This vulnerability is part of the ProxyLogon exploit chain.
Product
Exchange Server
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com packetstormsecurity.com
Nov 3, 2021Microsoft Exchange Server Remote Code Execution VulnerabilityCVE-2021-26858 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7.8
Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution. This vulnerability is part of the ProxyLogon exploit chain.
Product
Exchange Server
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Exchange Server Remote Code Execution VulnerabilityCVE-2021-27065 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7.8
Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution. This vulnerability is part of the ProxyLogon exploit chain.
Product
Exchange Server
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com packetstormsecurity.com
Nov 3, 2021Microsoft SharePoint Remote Code Execution VulnerabilityCVE-2019-0604 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareCritical 9.8
Microsoft SharePoint fails to check the source markup of an application package. An attacker who successfully exploits the vulnerability could run remote code in the context of the SharePoint application pool and the SharePoint server farm account.
Product
SharePoint
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft Exchange Server Remote Code Execution VulnerabilityCVE-2021-26857 · Email & office · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7.8
Microsoft Exchange Server contains an unspecified vulnerability that allows for remote code execution. This vulnerability is part of the ProxyLogon exploit chain.
Product
Exchange Server
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog msrc.microsoft.com portal.msrc.microsoft.com
Nov 3, 2021Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution VulnerabilityCVE-2020-1147 · Email & office · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8
Microsoft .NET Framework, Microsoft SharePoint, and Visual Studio contain a remote code execution vulnerability when the software fails to check the source markup of XML file input. Successful exploitation allows an attacker to execute code in the context of the process responsible for deserialization of the XML content.
Product
.NET Framework, SharePoint, Visual Studio
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Microsoft’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
Nov 3, 2021Sumavision EMR Cross-Site Request Forgery (CSRF) VulnerabilityCVE-2020-10181 · Other software · Sumavision · reported by MITREExploitedCritical 9.8
Sumavision Enhanced Multimedia Router (EMR) contains a cross-site request forgery (CSRF) vulnerability allowing the creation of users with elevated privileges as administrator on a device.
Product
Enhanced Multimedia Router (EMR)
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Sumavision’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com github.com
Nov 3, 2021Zyxel Multiple Products Use of Hard-Coded Credentials VulnerabilityCVE-2020-29583 · Network & remote access · Zyxel · reported by MITREExploitedCritical 9.8
Zyxel firewalls (ATP, USG, VM) and AP Controllers (NXC2500 and NXC5500) contain a use of hard-coded credentials vulnerability in an undocumented account ("zyfwp") with an unchangeable password.
Product
Multiple Products
On CISA’s list since
Nov 3, 2021 (federal fix deadline May 3, 2022)
What to do
Attackers are using this now. Install Zyxel’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog ftp.zyxel.com businessforum.zyxel.com

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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