CVE-2026-27858

Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory. Attacker can force managesieve-login to be unavailable by repeatedly crashing the process. Protect access to managesieve protocol, or install fixed version. No public...

CVE-2026-27858

Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory. Attacker can force managesieve-login to be unavailable by repeatedly crashing the process. Protect access to managesieve protocol, or install fixed version. No public...

CVE-2026-27858

Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory. Attacker can force managesieve-login to be unavailable by repeatedly crashing the process. Protect access to managesieve protocol, or install fixed version. No public...

CVE-2026-27858

CVE-2026-27858 affects the managesieve component. An attacker can send a specially crafted message before authentication that causes managesieve to allocate a large amount of memory, and can force the managesieve-login process to become unavailable by repeated crashes. The practical impact is pot...

CVE-2026-27858

Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory. Attacker can force managesieve-login to be unavailable by repeatedly crashing the process. Protect access to managesieve protocol, or install fixed version. No public...

CVE-2026-27858

Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory. Attacker can force managesieve-login to be unavailable by repeatedly crashing the process. Protect access to managesieve protocol, or install fixed version. No public...

CVE-2025-59032

ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response. This can be used to crash ManageSieve service repeatedly, making it unavailable for other users. Control access to ManageSieve port, or disable the service if it's not needed. Alternatively upgrade to a fixed...

CVE-2025-59032

CVE-2025-59032 affects ManageSieve: the AUTHENTICATE command crashes when a literal is used as the SASL initial response, potentially making the ManageSieve service unavailable for other users. Practical impact is availability denial of the service. Remediation provided in the entry is to upgrade...

CVE-2025-59032

ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response. This can be used to crash ManageSieve service repeatedly, making it unavailable for other users. Control access to ManageSieve port, or disable the service if it's not needed. Alternatively upgrade to a fixed...

CVE-2025-59032

ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response. This can be used to crash ManageSieve service repeatedly, making it unavailable for other users. Control access to ManageSieve port, or disable the service if it's not needed. Alternatively upgrade to a fixed...

CVE-2025-59032

ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response. This can be used to crash ManageSieve service repeatedly, making it unavailable for other users. Control access to ManageSieve port, or disable the service if it's not needed. Alternatively upgrade to a fixed...

CVE-2026-27858

Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory. Attacker can force managesieve-login to be unavailable by repeatedly crashing the process. Protect access to managesieve protocol, or install fixed version. No public...

UBUNTU-CVE-2026-27858

Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory. Attacker can force managesieve-login to be unavailable by repeatedly crashing the process. Protect access to managesieve protocol, or install fixed version. No public...

Open-Xchange OX Dovecot Pro 安全漏洞

Open-Xchange OX Dovecot Pro is a mail storage and delivery system provided by the German company Open-Xchange. Open-Xchange OX Dovecot Pro has a security vulnerability. This vulnerability stems from the ManageSieve AUTHENTICATE command failing when literal values are used as SASL initial response...

UBUNTU-CVE-2025-59032

ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response. This can be used to crash ManageSieve service repeatedly, making it unavailable for other users. Control access to ManageSieve port, or disable the service if it's not needed. Alternatively upgrade to a fixed...

CVE-2025-59032

ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response. This can be used to crash ManageSieve service repeatedly, making it unavailable for other users. Control access to ManageSieve port, or disable the service if it's not needed. Alternatively upgrade to a fixed...

Fedora 43 : roundcubemail (2026-547e298156)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-547e298156 advisory. Release 1.6.13 - Managesieve: Fix handling of string-list format values for date tests in Out of Office 10075 - Fix remote image blocking bypass via SVG...

MiracleLinux 7 : dovecot-2.2.36-3.el7.1 (AXSA:2019-4341:02)

The remote MiracleLinux 7 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2019-4341:02 advisory. dovecot: improper NULL byte handling in IMAP and ManageSieve protocol parsers leads to out of bounds writes CVE-2019-11500 Tenable has extracted the precedin...

PT-2026-28366

Name of the Vulnerable Software and Affected Versions Dovecot versions prior to 2.4.3 Description An attacker can send a crafted message before authentication, leading to excessive memory allocation within the managesieve component. This can cause the managesieve-login process to crash, potential...

PT-2025-54919

Name of the Vulnerable Software and Affected Versions Dovecot versions prior to 2.4.3 Description A flaw exists in the ManageSieve AUTHENTICATE command that causes the service to crash when a literal value is used as the SASL initial response. This can lead to repeated crashes, resulting in a...