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HuttenlocherTechnologies
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
456new WordPress flaws this week
390,714entries in the database

56 results · page 1 of 2

  • Oct 21, 2026Insertion of sensitive information into a log file in the SMTP server of Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a local user who can read the CVE-2026-114471 · Other software · Progressive Robot Ltd · reported by cve@gitlab.comMedium 4.7

    Insertion of sensitive information into a log file in the SMTP server of Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a local user who can read the server's log, or anyone given a copy of it, to obtain credentials. With SMTP logging enabled, the server hid the credential of an AUTH PLAIN command only when it was sent after EHLO in one exact form, and wrote the rest of the SASL exchange as the client sent it: a PLAIN password sent before EHLO or with extra spacing, the OAuth 2.0 bearer token of AUTH XOAUTH2 and AUTH OAUTHBEARER (from 6.2.0), the SCRAM-SHA-256 client proof (from 6.2.0), which with the logged salt and iteration count allows offline password guessing, and the GSSAPI authenticator (from 6.3.2). SMTP logging is off by default; on Windows before 6.3.6 the log folder was readable by every local user.

    Product
    hMailServer
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 20, 2026By permanently omitting the final control-response line, a malicious FTP, IMAP, POP3, or SMTP server can exploit libcurl and completely bypass its configured trCVE-2026-92387 · Other software · curl · reported by 2499f714-1537-4658-8207-48ae4bb9eae9High 8.1

    By permanently omitting the final control-response line, a malicious FTP, IMAP, POP3, or SMTP server can exploit libcurl and completely bypass its configured transfer timeout mechanism, indefinitely blocking all concurrent transfers bound to the same multi-handle.

    Product
    curl
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 20, 2026When authenticating to a POP3 or SMTP server using NTLM, Thunderbird did not check whether the server's challenge was valid base64.CVE-2026-113868 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgMedium 5.3

    When authenticating to a POP3 or SMTP server using NTLM, Thunderbird did not check whether the server's challenge was valid base64. A malicious server could send a challenge that caused Thunderbird to include uninitialized heap memory in its NTLM response, disclosing that memory to the server. A challenge consisting only of base64 padding also caused an out-of-bounds read, crashing Thunderbird. This affected accounts configured to use NTLM or GSSAPI authentication. The uninitialized memory disclosure only affected NTLM. This vulnerability was fixed in Thunderbird 158.0.1 and Thunderbird 153.5.1.

    Product
    Thunderbird
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 30, 2026In JetBrains YouTrack before 2026.2.18991 stored SMTP server credentials could be disclosed by changing the server hostCVE-2026-100264 · Other software · JetBrains · reported by cve@jetbrains.comLow 2.7

    In JetBrains YouTrack before 2026.2.18991 stored SMTP server credentials could be disclosed by changing the server host

    Product
    YouTrack
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 4, 2026System log files output unencrypted SMTP server authentication passwords alongside sensitive employee corporate identification data.CVE-2026-50205 · Other software · Acer · reported by 8fc372e3-d9c5-46e4-9410-38469745c639High 8.8

    System log files output unencrypted SMTP server authentication passwords alongside sensitive employee corporate identification data.

    Product
    Connect M6E 5G Portable WiFi Router
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 14, 2026Pode is a Cross-Platform PowerShell web framework for creating REST APIs, Web Sites, and TCP/SMTP servers.CVE-2026-42598 · Other software · Badgerati · reported by GitHubMedium 6.9

    Pode is a Cross-Platform PowerShell web framework for creating REST APIs, Web Sites, and TCP/SMTP servers. From 2.4.0, to before 2.13.0, when requesting content from a Static Route, it was possible to request paths such as http://localhost:8080/c:/Windows/System32/drivers/etc/hosts and have the contents returned. This vulnerability is fixed in 2.13.0.

    Product
    Pode
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 12, 2026Postal is an open source SMTP server.CVE-2026-25529 · Other software · postalserver · reported by GitHubHigh 8.1

    Postal is an open source SMTP server. Postal versions less than 3.3.5 had a HTML injection vulnerability that allowed unescaped data to be included in the admin interface. The primary way for unescaped data to be added is via the API's "send/raw" method. This could allow arbitrary HTML to be injected in to the page which may modify the page in a misleading way or allow for unauthorised javascript to be executed. Fixed in 3.3.5 and higher.

    Product
    postal
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 19, 2026GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Perimeter SMTP Servers configuration page.CVE-2026-23609 · Other software · GFI Software · reported by VulnCheckMedium 5.1

    GFI MailEssentials AI versions prior to 22.4 contain a stored cross-site scripting vulnerability in the Perimeter SMTP Servers configuration page. An authenticated user can supply HTML/JavaScript in the ctl00$ContentPlaceHolder1$pv3$txtDescription parameter to /MailEssentials/pages/MailSecurity/PerimeterSMTPServers.aspx, which is stored and later rendered in the management interface, allowing script execution in the context of a logged-in user.

    Product
    MailEssentials AI
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 11, 2025When the user set the Notification's sender to send emails to the SMTP server via msmtp, an improper validated TLS/SSL certificates allows an attacker who can iCVE-2025-13052 · Network & remote access · ASUSTOR · reported by security@asustor.comHigh 7

    When the user set the Notification's sender to send emails to the SMTP server via msmtp, an improper validated TLS/SSL certificates allows an attacker who can intercept network traffic between the SMTP client and server to execute a man-in-the-middle (MITM) attack, which may obtain the sensitive information of the SMTP. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.RKD2 as well as from ADM 5.0.0 through ADM 5.1.0.RN42.

    Product
    ADM
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 29, 2025An authenticated user can disclose the cleartext password of a configured SMTP server via an HTTP GET request to the /config.php endpoint.CVE-2025-48046 · Other software · MICI Network Co. Ltd. · reported by cve@rapid7.comMedium 5.3

    An authenticated user can disclose the cleartext password of a configured SMTP server via an HTTP GET request to the /config.php endpoint.

    Product
    NetFax Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 1, 2025Go-Guerrilla SMTP Daemon is a lightweight SMTP server written in Go.CVE-2025-31135 · Other software · phires · reported by GitHubMedium 5.3

    Go-Guerrilla SMTP Daemon is a lightweight SMTP server written in Go. Prior to 1.6.7, when ProxyOn is enabled, the PROXY command will be accepted multiple times, with later invocations overriding earlier ones. The proxy protocol only supports one initial PROXY header; anything after that is considered part of the exchange between client and server, so the client is free to send further PROXY commands with whatever data it pleases. go-guerrilla will treat these as coming from the reverse proxy, allowing a client to spoof its IP address. This vulnerability is fixed in 1.6.7.

    Product
    go-guerrilla
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 4, 2024Insufficiently protected credentials in SMTP server settings in 1C-Bitrix Bitrix24 23.300.100 allows remote administrators to read SMTP accounts passwords via HCVE-2024-34885 · Other software · bitrix · reported by MITREMedium 6.8

    Insufficiently protected credentials in SMTP server settings in 1C-Bitrix Bitrix24 23.300.100 allows remote administrators to read SMTP accounts passwords via HTTP GET request.

    Product
    bitrix24
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 4, 2024Insufficiently protected credentials in SMTP server settings in 1C-Bitrix Bitrix24 23.300.100 allows remote administrators to send SMTP account passwords to an CVE-2024-34882 · Other software · bitrix · reported by MITREMedium 4.9

    Insufficiently protected credentials in SMTP server settings in 1C-Bitrix Bitrix24 23.300.100 allows remote administrators to send SMTP account passwords to an arbitrary server via HTTP POST request.

    Product
    bitrix24
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 15, 2024Certain HP DesignJet products may be vulnerable to credential reflection which allow viewing SMTP server credentials.CVE-2024-5749 · Other software · HP Inc. · reported by hp-security-alert@hp.comHigh 7.5

    Certain HP DesignJet products may be vulnerable to credential reflection which allow viewing SMTP server credentials.

    Product
    Certain HP DesignJet products
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 23, 2024A user with device administrative privileges can change existing SMTP server settings on the device, without having to re-enter SMTP server credentials.CVE-2024-5143 · Other software · HP Inc. · reported by hp-security-alert@hp.comMedium 6.8

    A user with device administrative privileges can change existing SMTP server settings on the device, without having to re-enter SMTP server credentials. By redirecting send-to-email traffic to the new server, the original SMTP server credentials may potentially be exposed.

    Product
    Certain HP LaserJet Pro Printers
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 11, 2024Postal is an open source SMTP server.CVE-2024-27938 · Other software · postalserver · reported by GitHubMedium 5.3

    Postal is an open source SMTP server. Postal versions less than 3.0.0 are vulnerable to SMTP Smuggling attacks which may allow incoming e-mails to be spoofed. This, in conjunction with a cooperative outgoing SMTP service, would allow for an incoming e-mail to be received by Postal addressed from a server that a user has 'authorised' to send mail on their behalf but were not the genuine author of the e-mail. Postal is not affected for sending outgoing e-mails as email is re-encoded with `<CR><LF>` line endings when transmitted over SMTP. This issue has been addressed and users should upgrade to Postal v3.0.0 or higher. Once upgraded, Postal will only accept End of DATA sequences which are explicitly `<CR><LF>.<CR><LF>`. If a non-compliant sequence is detected it will be logged to the SMTP server log. There are no workarounds for this issue.

    Product
    postal
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 17, 2024This vulnerability exist in Skyworth Router CM5100, version 4.1.1.24, due to insufficient validation of user supplied input for the SMTP Server Name parameter aCVE-2023-51726 · Other software · Hathway · reported by vdisclose@cert-in.org.inMedium 6.9

    This vulnerability exist in Skyworth Router CM5100, version 4.1.1.24, due to insufficient validation of user supplied input for the SMTP Server Name parameter at its web interface. A remote attacker could exploit this vulnerability by supplying specially crafted input to the parameter at the web interface of the vulnerable targeted system. Successful exploitation of this vulnerability could allow the attacker to perform stored XSS attacks on the targeted system.

    Product
    Skyworth Router CM5100
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 21, 2021IBM i 7.1, 7.2, 7.3, and 7.4 SMTP allows a network attacker to send emails to non-existent local-domain recipients to the SMTP server, caused by using a non-defCVE-2021-20501 · Other software · IBM · reported by psirt@us.ibm.comHigh 8.2

    IBM i 7.1, 7.2, 7.3, and 7.4 SMTP allows a network attacker to send emails to non-existent local-domain recipients to the SMTP server, caused by using a non-default configuration. An attacker could exploit this vulnerability to consume unnecessary network bandwidth and disk space, and allow remote attackers to send spam email. IBM X-Force ID: 198056.

    Product
    i
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 8, 2020When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte.CVE-2020-26970 · Computers, phones & browsers · Mozilla · reported by security@mozilla.orgHigh 8.8

    When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte. Depending on processor architecture and stack layout, this leads to stack corruption that may be exploitable. This vulnerability affects Thunderbird < 78.5.1.

    Product
    Thunderbird
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 16, 2020Jenkins Email Extension Plugin 2.75 and earlier does not perform hostname validation when connecting to the configured SMTP server.CVE-2020-2253 · Websites & servers · Jenkins project · reported by jenkinsci-cert@googlegroups.comMedium 4.8

    Jenkins Email Extension Plugin 2.75 and earlier does not perform hostname validation when connecting to the configured SMTP server.

    Product
    Jenkins Email Extension Plugin
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 16, 2020Jenkins Mailer Plugin 1.32 and earlier does not perform hostname validation when connecting to the configured SMTP server.CVE-2020-2252 · Websites & servers · Jenkins project · reported by jenkinsci-cert@googlegroups.comMedium 4.8

    Jenkins Mailer Plugin 1.32 and earlier does not perform hostname validation when connecting to the configured SMTP server.

    Product
    Jenkins Mailer Plugin
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 25, 2020MSA/SMTP.cpp in Trojita before 0.8 ignores certificate-verification errors, which allows man-in-the-middle attackers to spoof SMTP servers.CVE-2020-15047 · Other software · Trojita Project · reported by MITREMedium 5.9

    MSA/SMTP.cpp in Trojita before 0.8 ignores certificate-verification errors, which allows man-in-the-middle attackers to spoof SMTP servers.

    Product
    Trojita
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 4, 2020Castel NextGen DVR v1.0.0 stores and displays credentials for the associated SMTP server in cleartext.CVE-2020-11681 · Other software · Castel · reported by MITREHigh 8.1

    Castel NextGen DVR v1.0.0 stores and displays credentials for the associated SMTP server in cleartext. Low privileged users can exploit this to create an administrator user and obtain the SMTP credentials.

    Product
    Nextgen DVR Firmware
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 15, 2020A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server.CVE-2020-1758 · Other software · Red Hat · reported by Red HatMedium 5.3

    A flaw was found in Keycloak in versions before 10.0.0, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle (MITM) attack.

    Product
    keycloak
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 30, 2019SMTP MITM refers to a malicious actor setting up an SMTP proxy server between the UniFi Controller version <= 5.10.21 and their actual SMTP server to record theCVE-2019-5456 · Other software · UniFi · reported by support@hackerone.comHigh 8.1

    SMTP MITM refers to a malicious actor setting up an SMTP proxy server between the UniFi Controller version <= 5.10.21 and their actual SMTP server to record their SMTP credentials for malicious use later.

    Product
    UniFi
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 12, 2019On certain Lexmark devices that communicate with an LDAP or SMTP server, a malicious administrator can discover LDAP or SMTP credentials by changing that serverCVE-2018-17944 · Other software · Lexmark · reported by MITREMedium 4.9

    On certain Lexmark devices that communicate with an LDAP or SMTP server, a malicious administrator can discover LDAP or SMTP credentials by changing that server's hostname to one that they control, and then capturing the credentials that are sent there. This occurs because stored credentials are not automatically deleted upon that type of hostname change.

    Product
    Cx725h Firmware
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 31, 2019The MailConnect feature on D-Link Central WiFiManager CWM-100 1.03 r0098 devices is intended to check a connection to an SMTP server but actually allows outbounCVE-2018-15517 · Other software · Dlink · reported by MITREHigh 8.6

    The MailConnect feature on D-Link Central WiFiManager CWM-100 1.03 r0098 devices is intended to check a connection to an SMTP server but actually allows outbound TCP to any port on any IP address, leading to SSRF, as demonstrated by an index.php/System/MailConnect/host/127.0.0.1/port/22/secure/ URI.

    Product
    Central Wifimanager
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 20, 2018IBM InfoSphere BigInsights 2.1.2 allows remote authenticated users to discover SMTP server credentials via vectors related to the Alert management service.CVE-2014-4782 · Other software · IBM · reported by psirt@us.ibm.comMedium 6.5

    IBM InfoSphere BigInsights 2.1.2 allows remote authenticated users to discover SMTP server credentials via vectors related to the Alert management service. IBM X-Force ID: 95029.

    Product
    Infosphere Biginsights
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 8, 2016steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properCVE-2016-9920 · Websites & servers · Roundcube · reported by MITREHigh 7.5

    steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line, which allows remote authenticated users to execute arbitrary code via a modified HTTP request that sends a crafted e-mail message.

    Product
    Webmail
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 26, 2014The SMTP server in DeepOfix 3.3 and earlier allows remote attackers to bypass authentication via an empty password, which triggers an LDAP anonymous bind.CVE-2013-6796 · Other software · Deeproot Linux · reported by MITREMedium 5

    The SMTP server in DeepOfix 3.3 and earlier allows remote attackers to bypass authentication via an empty password, which triggers an LDAP anonymous bind.

    Product
    Deepofix
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 13, 2011The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enCVE-2011-1720 · Other software · Postfix · reported by MITREMedium 6.8

    The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentication methods are enabled, does not create a new server handle after client authentication fails, which allows remote attackers to cause a denial of service (heap memory corruption and daemon crash) or possibly execute arbitrary code via an invalid AUTH command with one method followed by an AUTH command with a different method.

    Product
    Postfix
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 25, 2009Format string vulnerability in MemeCode Software i.Scribe 1.88 through 2.00 before Beta9 allows remote SMTP servers to cause a denial of service (crash) and posCVE-2008-7074 · Other software · Memcode · reported by MITREHigh 9.3

    Format string vulnerability in MemeCode Software i.Scribe 1.88 through 2.00 before Beta9 allows remote SMTP servers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in a server response, which is not properly handled "when displaying the signon message."

    Product
    I.scribe
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 10, 2008smtp.c in the c-client library in University of Washington IMAP Toolkit 2007b allows remote SMTP servers to cause a denial of service (NULL pointer dereference CVE-2008-5006 · Other software · University Of Washington · reported by MITREMedium 5

    smtp.c in the c-client library in University of Washington IMAP Toolkit 2007b allows remote SMTP servers to cause a denial of service (NULL pointer dereference and application crash) by responding to the QUIT command with a close of the TCP connection instead of the expected 221 response code.

    Product
    Imap Toolkit
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 2, 2008Mail in Apple Mac OS X before 10.5, when an IPv6 SMTP server is used, does not properly initialize memory, which might allow remote attackers to execute arbitraCVE-2008-1576 · Computers, phones & browsers · Apple · reported by MITREMedium 6.8

    Mail in Apple Mac OS X before 10.5, when an IPv6 SMTP server is used, does not properly initialize memory, which might allow remote attackers to execute arbitrary code or cause a denial of service (application crash), or obtain sensitive information (memory contents) in opportunistic circumstances, by sending an e-mail message.

    Product
    MAC OS X
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 23, 2008Buffer overflow in Citadel SMTP server 7.10 and earlier allows remote attackers to execute arbitrary code via a long RCPT TO command, which is not properly handCVE-2008-0394 · Other software · Citadel · reported by MITREHigh 7.5

    Buffer overflow in Citadel SMTP server 7.10 and earlier allows remote attackers to execute arbitrary code via a long RCPT TO command, which is not properly handled by the makeuserkey function. NOTE: some of these details were obtained from third party information.

    Product
    Smtp
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 28, 2007QK SMTP Server 3 allows remote attackers to cause a denial of service (daemon crash) via a long (1) HELO, (2) MAIL FROM, or (3) RCPT TO command; or (4) a long sCVE-2007-6573 · Other software · Qksoft · reported by MITREHigh 7.8

    QK SMTP Server 3 allows remote attackers to cause a denial of service (daemon crash) via a long (1) HELO, (2) MAIL FROM, or (3) RCPT TO command; or (4) a long string in the message sent after the DATA command; possibly a related issue to CVE-2006-5551.

    Product
    QK Smtp Server 3
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 26, 2007Heap-based buffer overflow in iaspam.dll in the SMTP Server in Ipswitch IMail Server 8.01 through 8.11 allows remote attackers to execute arbitrary code via a sCVE-2007-5094 · Other software · Ipswitch · reported by MITREHigh 7.5

    Heap-based buffer overflow in iaspam.dll in the SMTP Server in Ipswitch IMail Server 8.01 through 8.11 allows remote attackers to execute arbitrary code via a set of four different e-mail messages with a long boundary parameter in a certain malformed Content-Type header line, the string "MIME" by itself on a line in the header, and a long Content-Transfer-Encoding header line.

    Product
    Imail
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 20, 2007Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote attackers to execute arbitrarCVE-2007-4440 · Other software · Pmail · reported by MITREHigh 7.5

    Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote attackers to execute arbitrary code via a long AUTH CRAM-MD5 string. NOTE: this might overlap CVE-2006-5961.

    Product
    Mercury Mail Transport System
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 14, 2007Format string vulnerability in the SMTP server component in Qbik WinGate 5.x and 6.x before 6.2.2 allows remote attackers to cause a denial of service (service CVE-2007-4335 · Other software · Qbik · reported by MITREMedium 5

    Format string vulnerability in the SMTP server component in Qbik WinGate 5.x and 6.x before 6.2.2 allows remote attackers to cause a denial of service (service crash) via format string specifiers in certain unexpected commands, which trigger a crash during error logging.

    Product
    Wingate
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • May 21, 2007Stack-based buffer overflow in Eudora 7.1 allows user-assisted, remote SMTP servers to execute arbitrary code via a long SMTP reply.CVE-2007-2770 · Computers, phones & browsers · Qualcomm · reported by MITREHigh 9.3

    Stack-based buffer overflow in Eudora 7.1 allows user-assisted, remote SMTP servers to execute arbitrary code via a long SMTP reply. NOTE: the user must click through a warning about a possible buffer overflow exploit to trigger this issue.

    Product
    Eudora
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 5, 2006The SMTP server in Apache Java Mail Enterprise Server (aka Apache James) 2.2.0 allows remote attackers to cause a denial of service (CPU consumption) via a longCVE-2006-2806 · Websites & servers · Apache · reported by MITREHigh 7.8

    The SMTP server in Apache Java Mail Enterprise Server (aka Apache James) 2.2.0 allows remote attackers to cause a denial of service (CPU consumption) via a long argument to the MAIL command.

    Product
    James
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 29, 2006Buffer overflow in BL4 SMTP Server 0.1.4 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a long argument CVE-2006-2107 · Other software · Bl4 · reported by MITREHigh 7.5

    Buffer overflow in BL4 SMTP Server 0.1.4 and earlier allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a long argument to the (1) EHLO, (2) MAIL FROM, and (3) RCPT TO commands.

    Product
    Smtp Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 4, 2006Format string vulnerability in the SMTP server for McAfee WebShield 4.5 MR2 and earlier allows remote attackers to execute arbitrary code via format strings in CVE-2006-0559 · Other software · Mcafee · reported by MITREHigh 10

    Format string vulnerability in the SMTP server for McAfee WebShield 4.5 MR2 and earlier allows remote attackers to execute arbitrary code via format strings in the domain name portion of a destination address, which are not properly handled when a bounce message is constructed.

    Product
    Webshield Smtp
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Mar 3, 2006Craig Morrison Mail Transport System Professional (aka MTS Pro) acts as an open relay when configured to relay all mail through an external SMTP server, which aCVE-2006-0977 · Other software · Craig Morrison · reported by MITREMedium 5

    Craig Morrison Mail Transport System Professional (aka MTS Pro) acts as an open relay when configured to relay all mail through an external SMTP server, which allows remote attackers to relay mail by connecting to the MTS Pro server, then sending a MAIL FROM that specifies a domain that is local to the server.

    Product
    MTS Pro
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 8, 2005Free SMTP Server 2.2 allows remote attackers to use the server as an open mail relay (spam proxy).CVE-2005-2857 · Other software · Softstack · reported by MITREHigh 7.5

    Free SMTP Server 2.2 allows remote attackers to use the server as an open mail relay (spam proxy).

    Product
    Free Smtp Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 27, 2005Multiple stack-based buffer overflows in GoodTech SMTP server 5.16 allow remote attackers to execute arbitrary code via (1) a RCPT TO command with a long DNS naCVE-2005-2387 · Other software · Goodtech Systems · reported by MITREHigh 7.5

    Multiple stack-based buffer overflows in GoodTech SMTP server 5.16 allow remote attackers to execute arbitrary code via (1) a RCPT TO command with a long DNS name, or (2) a large number of RCPT TO commands with a long e-mail name arugment in the last command.

    Product
    Goodtech Smtp Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jul 5, 2005GoodTech SMTP Server 5.14 allows remote attackers to cause a denial of service (application crash) via a RCPT TO command with an invalid argument, as demonstratCVE-2005-1931 · Other software · Goodtech Systems · reported by MITREMedium 5

    GoodTech SMTP Server 5.14 allows remote attackers to cause a denial of service (application crash) via a RCPT TO command with an invalid argument, as demonstrated using an "A" character.

    Product
    Goodtech Smtp Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 17, 2003Format string vulnerability in send_message.c for Sylpheed-claws 0.9.4 through 0.9.6 allows remote SMTP servers to cause a denial of service (crash) in sylpheedCVE-2003-0852 · Other software · Sylpheed · reported by MITREMedium 5

    Format string vulnerability in send_message.c for Sylpheed-claws 0.9.4 through 0.9.6 allows remote SMTP servers to cause a denial of service (crash) in sylpheed via format strings in an error message.

    Product
    Sylpheed
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 4, 2002Buffer overflow in read_smtp_response of protocol.c in libesmtp before 0.8.11 allows a remote SMTP server to (1) execute arbitrary code via a certain response oCVE-2002-1090 · Other software · Libesmtp · reported by MITREHigh 7.5

    Buffer overflow in read_smtp_response of protocol.c in libesmtp before 0.8.11 allows a remote SMTP server to (1) execute arbitrary code via a certain response or (2) cause a denial of service via long server responses.

    Product
    Libesmtp
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 11, 2001Vulnerability in Postfix SMTP server before 20010228-pl07, when configured to email the postmaster when SMTP errors cause the session to terminate, allows remotCVE-2001-0894 · Other software · Wietse Venema · reported by MITREMedium 5

    Vulnerability in Postfix SMTP server before 20010228-pl07, when configured to email the postmaster when SMTP errors cause the session to terminate, allows remote attackers to cause a denial of service (memory exhaustion) by generating a large number of SMTP errors, which forces the SMTP session log to grow too large.

    Product
    Postfix
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

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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