Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 5 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.

1,762exploited flaws on CISA’s list
34added in the last 30 days
324new WordPress flaws this week
390,007entries in the database

35 results

  • Sep 18, 2026Linux Kernel Race Condition VulnerabilityCVE-2025-39964 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 7.8

    Linux Kernel contains a race condition vulnerability which allows concurrent writes to the same AF_ALG socket causing data to be unpredictably interleaved and creating inconsistencies in the socket's internal state.

    Product
    Kernel
    On CISA’s list since
    Sep 18, 2026 (federal fix deadline Sep 21, 2026)
    What to do
    Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Aug 26, 2026Red Hat Libuser Race Condition VulnerabilityCVE-2015-3246 · Other software · Red Hat · reported by Red HatExploitedHigh 7.4

    Red Hat libuser contains a race condition vulnerability that allows authenticated local users to corrupt the /etc/passwd file to cause a denial of service or privilege escalation.

    Product
    Libuser
    On CISA’s list since
    Aug 26, 2026 (federal fix deadline Sep 9, 2026)
    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.
  • Apr 20, 2026Quest KACE Systems Management Appliance (SMA) Improper Authentication VulnerabilityCVE-2025-32975 · Other software · Quest · reported by MITREExploitedCritical 10

    Quest KACE Systems Management Appliance (SMA) contains an improper authentication vulnerability that could allow attackers to impersonate legitimate users without valid credentials.

    Product
    KACE Systems Management Appliance (SMA)
    On CISA’s list since
    Apr 20, 2026 (federal fix deadline May 4, 2026)
    What to do
    Attackers are using this now. Install Quest’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Mar 9, 2026Omnissa Workspace ONE Server-Side Request ForgeryCVE-2021-22054 · Other software · Omnissa · reported by security@vmware.comExploitedHigh 7.5

    Omnissa Workspace One UEM formerly known as VMware Workspace One UEM contains a server-side request forgery (SSRF) vulnerability that could allow a malicious actor with network access to UEM to send their requests without authentication and to gain access to sensitive information.

    Product
    Workspace One UEM
    On CISA’s list since
    Mar 9, 2026 (federal fix deadline Mar 23, 2026)
    What to do
    Attackers are using this now. Install Omnissa’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 12, 2025Microsoft Windows Race Condition VulnerabilityCVE-2025-62215 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7

    Microsoft Windows Kernel contains a race condition vulnerability that allows a local attacker with low-level privileges to escalate privileges. Successful exploitation of this vulnerability could enable the attacker to gain SYSTEM-level access.

    Product
    Windows
    On CISA’s list since
    Nov 12, 2025 (federal fix deadline Dec 3, 2025)
    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.
  • Sep 4, 2025Linux Kernel Time-of-Check Time-of-Use (TOCTOU) Race Condition VulnerabilityCVE-2025-38352 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 7.8

    Linux kernel contains a time-of-check time-of-use (TOCTOU) race condition vulnerability that has a high impact on confidentiality, integrity, and availability.

    Product
    Kernel
    On CISA’s list since
    Sep 4, 2025 (federal fix deadline Sep 25, 2025)
    What to do
    Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Mar 4, 2025VMware ESXi and Workstation TOCTOU Race Condition VulnerabilityCVE-2025-22224 · Other software · VMware · reported by security@vmware.comExploitedCritical 9.3

    VMware ESXi and Workstation contain a time-of-check time-of-use (TOCTOU) race condition vulnerability that leads to an out-of-bounds write. Successful exploitation enables an attacker with local administrative privileges on a virtual machine to execute code as the virtual machine's VMX process running on the host.

    Product
    ESXi and Workstation
    On CISA’s list since
    Mar 4, 2025 (federal fix deadline Mar 25, 2025)
    What to do
    Attackers are using this now. Install VMware’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 18, 2024Palo Alto Networks PAN-OS Management Interface Authentication Bypass VulnerabilityCVE-2024-0012 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comExploitedRansomwareCritical 9.3

    Palo Alto Networks PAN-OS contains an authentication bypass vulnerability in the web-based management interface for several PAN-OS products, including firewalls and VPN concentrators.

    Product
    PAN-OS
    On CISA’s list since
    Nov 18, 2024 (federal fix deadline Dec 9, 2024)
    What to do
    Attackers are using this now. Install Palo Alto Networks’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.
  • Nov 18, 2024Palo Alto Networks PAN-OS Management Interface OS Command Injection VulnerabilityCVE-2024-9474 · Network & remote access · Palo Alto Networks · reported by psirt@paloaltonetworks.comExploitedRansomwareMedium 6.9

    Palo Alto Networks PAN-OS contains an OS command injection vulnerability that allows for privilege escalation through the web-based management interface for several PAN products, including firewalls and VPN concentrators.

    Product
    PAN-OS
    On CISA’s list since
    Nov 18, 2024 (federal fix deadline Dec 9, 2024)
    What to do
    Attackers are using this now. Install Palo Alto Networks’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.
  • Oct 15, 2024Microsoft Windows Kernel TOCTOU Race Condition VulnerabilityCVE-2024-30088 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedRansomwareHigh 7

    Microsoft Windows Kernel contains a time-of-check to time-of-use (TOCTOU) race condition vulnerability that could allow for privilege escalation.

    Product
    Windows
    On CISA’s list since
    Oct 15, 2024 (federal fix deadline Nov 5, 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.
  • Sep 18, 2024Oracle ADF Faces Deserialization of Untrusted Data VulnerabilityCVE-2022-21445 · Other software · Oracle · reported by secalert_us@oracle.comExploitedCritical 9.8

    Oracle ADF Faces library, included with Oracle JDeveloper Distribution, contains a deserialization of untrusted data vulnerability leading to unauthenticated remote code execution.

    Product
    ADF Faces
    On CISA’s list since
    Sep 18, 2024 (federal fix deadline Oct 9, 2024)
    What to do
    Attackers are using this now. Install Oracle’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Aug 19, 2024Jenkins Command Line Interface (CLI) Path Traversal VulnerabilityCVE-2024-23897 · Websites & servers · Jenkins · reported by jenkinsci-cert@googlegroups.comExploitedRansomwareCritical 9.8

    Jenkins Command Line Interface (CLI) contains a path traversal vulnerability that allows attackers limited read access to certain files, which can lead to code execution.

    Product
    Jenkins Command Line Interface (CLI)
    On CISA’s list since
    Aug 19, 2024 (federal fix deadline Sep 9, 2024)
    What to do
    Attackers are using this now. Install Jenkins’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.
  • 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.
  • Jun 29, 2023Samsung Mobile Devices Race Condition VulnerabilityCVE-2021-25394 · Computers, phones & browsers · Samsung · reported by mobile.security@samsung.comExploitedMedium 6.4

    Samsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.

    Product
    Mobile Devices
    On CISA’s list since
    Jun 29, 2023 (federal fix deadline Jul 20, 2023)
    What to do
    Attackers are using this now. Install Samsung’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Jun 29, 2023Samsung Mobile Devices Race Condition VulnerabilityCVE-2021-25395 · Computers, phones & browsers · Samsung · reported by mobile.security@samsung.comExploitedMedium 6.4

    Samsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.

    Product
    Mobile Devices
    On CISA’s list since
    Jun 29, 2023 (federal fix deadline Jul 20, 2023)
    What to do
    Attackers are using this now. Install Samsung’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • May 12, 2023Jenkins User Interface (UI) Information Disclosure VulnerabilityCVE-2015-5317 · Websites & servers · Jenkins · reported by Red HatExploitedHigh 7.5

    Jenkins User Interface (UI) contains an information disclosure vulnerability that allows users to see the names of jobs and builds otherwise inaccessible to them on the "Fingerprints" pages.

    Product
    Jenkins User Interface (UI)
    On CISA’s list since
    May 12, 2023 (federal fix deadline Jun 2, 2023)
    What to do
    Attackers are using this now. Install Jenkins’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • May 12, 2023Linux Kernel Race Condition VulnerabilityCVE-2014-0196 · Computers, phones & browsers · Linux · reported by Red HatExploitedMedium 5.5

    Linux Kernel contains a race condition vulnerability within the n_tty_write function that allows local users to cause a denial-of-service (DoS) or gain privileges via read and write operations with long strings.

    Product
    Kernel
    On CISA’s list since
    May 12, 2023 (federal fix deadline Jun 2, 2023)
    What to do
    Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Apr 10, 2023Apple iOS, iPadOS, and macOS IOSurfaceAccelerator Out-of-Bounds Write VulnerabilityCVE-2023-28206 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 8.6

    Apple iOS, iPadOS, and macOS IOSurfaceAccelerator contain an out-of-bounds write vulnerability that allows an app to execute code with kernel privileges.

    Product
    iOS, iPadOS, and macOS
    On CISA’s list since
    Apr 10, 2023 (federal fix deadline May 1, 2023)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Mar 30, 2023Fortra Cobalt Strike User Interface Remote Code Execution VulnerabilityCVE-2022-42948 · Other software · Fortra · reported by MITREExploitedCritical 9.8

    Fortra Cobalt Strike User Interface contains an unspecified vulnerability rooted in Java Swing that may allow remote code execution.

    Product
    Cobalt Strike
    On CISA’s list since
    Mar 30, 2023 (federal fix deadline Apr 20, 2023)
    What to do
    Attackers are using this now. Install Fortra’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Jan 26, 2023Telerik UI for ASP.NET AJAX Insecure Direct Object Reference VulnerabilityCVE-2017-11357 · Other software · Telerik · reported by MITREExploitedRansomwareCritical 9.8

    Telerik UI for ASP.NET AJAX contains an insecure direct object reference vulnerability in RadAsyncUpload that can result in file uploads in a limited location and/or remote code execution.

    Product
    User Interface (UI) for ASP.NET AJAX
    On CISA’s list since
    Jan 26, 2023 (federal fix deadline Feb 16, 2023)
    What to do
    Attackers are using this now. Install Telerik’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.
  • May 25, 2022Microsoft Windows Graphics Device Interface (GDI) Remote Code Execution VulnerabilityCVE-2016-3393 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8

    A remote code execution vulnerability exists due to the way the Windows GDI component handles objects in the memory. An attacker who successfully exploits this vulnerability could take control of the affected system.

    Product
    Windows
    On CISA’s list since
    May 25, 2022 (federal fix deadline Jun 15, 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.
  • May 24, 2022Microsoft Windows Graphics Device Interface (GDI) Privilege Escalation VulnerabilityCVE-2017-0005 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8

    The Graphics Device Interface (GDI) in Microsoft Windows allows local users to gain privileges via a crafted application.

    Product
    Windows
    On CISA’s list since
    May 24, 2022 (federal fix deadline Jun 14, 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.
  • May 23, 2022Android Kernel Race Condition VulnerabilityCVE-2021-0920 · Computers, phones & browsers · Android · reported by security@android.comExploitedMedium 6.4

    Android kernel contains a race condition, which allows for a use-after-free vulnerability. Exploitation can allow for privilege escalation.

    Product
    Kernel
    On CISA’s list since
    May 23, 2022 (federal fix deadline Jun 13, 2022)
    What to do
    Attackers are using this now. Install Android’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Apr 14, 2022VMware Workspace ONE Access and Identity Manager Server-Side Template Injection VulnerabilityCVE-2022-22954 · Other software · VMware · reported by security@vmware.comExploitedRansomwareCritical 9.8

    VMware Workspace ONE Access and Identity Manager allow for remote code execution due to server-side template injection.

    Product
    Workspace ONE Access and Identity Manager
    On CISA’s list since
    Apr 14, 2022 (federal fix deadline May 5, 2022)
    What to do
    Attackers are using this now. Install VMware’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.
  • Apr 11, 2022Telerik UI for ASP.NET AJAX Unrestricted File Upload VulnerabilityCVE-2017-11317 · Other software · Telerik · reported by MITREExploitedCritical 9.8

    Telerik.Web.UI in Progress Telerik UI for ASP.NET AJAX allows remote attackers to perform arbitrary file uploads or execute arbitrary code.

    Product
    User Interface (UI) for ASP.NET AJAX
    On CISA’s list since
    Apr 11, 2022 (federal fix deadline May 2, 2022)
    What to do
    Attackers are using this now. Install Telerik’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Mar 25, 2022Quest KACE System Management Appliance Remote Command Execution VulnerabilityCVE-2018-11138 · Other software · Quest · reported by MITREExploitedRansomwareCritical 9.8

    The '/common/download_agent_installer.php' script in the Quest KACE System Management Appliance is accessible by anonymous users and can be abused to perform remote code execution.

    Product
    KACE System Management Appliance
    On CISA’s list since
    Mar 25, 2022 (federal fix deadline Apr 15, 2022)
    What to do
    Attackers are using this now. Install Quest’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.
  • Mar 25, 2022Microsoft GDI Remote Code Execution VulnerabilityCVE-2019-0903 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 8.8

    A remote code execution vulnerability exists in the way that the Windows Graphics Device Interface (GDI) handles objects in the memory. An attacker who successfully exploited this vulnerability could take control of the affected system.

    Product
    Graphics Device Interface (GDI)
    On CISA’s list since
    Mar 25, 2022 (federal fix deadline Apr 15, 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.
  • Mar 3, 2022Microsoft Graphics Device Interface (GDI) Privilege Escalation VulnerabilityCVE-2017-0001 · Computers, phones & browsers · Microsoft · reported by secure@microsoft.comExploitedHigh 7.8

    The Graphics Device Interface (GDI) in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607 allows local users to gain privileges

    Product
    Graphics Device Interface (GDI)
    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.
  • Mar 3, 2022Linux Kernel Race Condition VulnerabilityCVE-2016-5195 · Computers, phones & browsers · Linux · reported by chrome-cve-admin@google.comExploitedHigh 7

    Race condition in mm/gup.c in the Linux kernel allows local users to escalate privileges.

    Product
    Kernel
    On CISA’s list since
    Mar 3, 2022 (federal fix deadline Mar 24, 2022)
    What to do
    Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Jan 10, 2022Primetek Primefaces Remote Code Execution VulnerabilityCVE-2017-1000486 · Other software · Primetek · reported by MITREExploitedCritical 9.8

    Primetek Primefaces is vulnerable to a weak encryption flaw resulting in remote code execution

    Product
    Primefaces Application
    On CISA’s list since
    Jan 10, 2022 (federal fix deadline Jul 10, 2022)
    What to do
    Attackers are using this now. Install Primetek’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Google Chromium Race Condition VulnerabilityCVE-2021-21166 · Computers, phones & browsers · Google · reported by chrome-cve-admin@google.comExploitedHigh 8.8

    Google Chromium contains a race condition vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

    Product
    Chromium
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline Nov 17, 2021)
    What to do
    Attackers are using this now. Install Google’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Apple Multiple Products Race Condition VulnerabilityCVE-2021-1782 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 7

    Apple iOS, iPadOs, macOS, watchOS, and tvOS contain a race condition vulnerability that may allow a malicious application to elevate privileges.

    Product
    Multiple Products
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline Nov 17, 2021)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Apple iOS and macOS Group Facetime VulnerabilityCVE-2019-6223 · Computers, phones & browsers · Apple · reported by product-security@apple.comExploitedHigh 7.5

    Apple iOS and macOS Group FaceTime contains an unspecified vulnerability where the call initiator can cause the recipient's Apple device to answer unknowingly or without user interaction.

    Product
    iOS and macOS
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline May 3, 2022)
    What to do
    Attackers are using this now. Install Apple’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
  • Nov 3, 2021Citrix Workspace Application and Receiver for Windows Remote Code Execution VulnerabilityCVE-2019-11634 · Network & remote access · Citrix · reported by MITREExploitedRansomwareCritical 9.8

    Citrix Workspace Application and Receiver for Windows contains remote code execution vulnerability resulting from local drive access preferences not being enforced into the clients' local drives.

    Product
    Workspace Application and Receiver for Windows
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline May 3, 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.
  • Nov 3, 2021F5 BIG-IP Traffic Management User Interface (TMUI) Remote Code Execution VulnerabilityCVE-2020-5902 · Network & remote access · F5 · reported by f5sirt@f5.comExploitedRansomwareCritical 9.8

    F5 BIG-IP Traffic Management User Interface (TMUI) contains a remote code execution vulnerability in undisclosed pages.

    Product
    BIG-IP
    On CISA’s list since
    Nov 3, 2021 (federal fix deadline May 3, 2022)
    What to do
    Attackers are using this now. Install F5’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.

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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