https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Wed, 30 Sep 2026 01:41:13 +0000 https://vulnerability.circl.lu/vuln/cve-2026-40013 <p><strong>Affected:</strong> Open-Xchange GmbH OX Dovecot Pro, Open-Xchange GmbH OX Dovecot CE</p> <p>An attacker that has valid credentials can submit a Sieve script containing an extreme numeric literal, which causes an out-of-bounds write when the ManageSieve service compiles the script. This causes memory corruption and an observed crash of the ManageSieve process, resulting in denial of service for script management. This might be able to be used for remote code execution. Disable the ManageSieve service if users do not need remote Sieve script management. Update to non-vulnerable version. No publicly available exploits are known.</p> <p><strong>Affected:</strong> Open-Xchange GmbH OX Dovecot Pro, Open-Xchange GmbH OX Dovecot CE</p> <p>An attacker that has valid credentials can submit a Sieve script containing an extreme numeric literal, which causes an out-of-bounds write when the ManageSieve service compiles the script. This causes memory corruption and an observed crash of the ManageSieve process, resulting in denial of service for script management. This might be able to be used for remote code execution. Disable the ManageSieve service if users do not need remote Sieve script management. Update to non-vulnerable version. No publicly available exploits are known.</p> https://vulnerability.circl.lu/vuln/cve-2026-40013