EUVD-2026-75129

An issue was discovered in Cyrus IMAP before 3.12.4. There is a Sieve mailbox existence oracle. An authenticated user could install a Sieve script that probed whether another user's private mailbox existed, or read the value of shared mailbox annotations, by observing which fileinto branch fired...

CVE-2026-61911

Cyrus IMAP before 3.12.4 is affected by a Sieve mailbox existence oracle . An authenticated user can install a Sieve script that probes whether another user's private mailbox exists, or read the value of shared mailbox annotations , by observing which fileinto branch fires during LMTP delivery. T...

FreeBSD : Dovecot -- Multiple vulnerabilities (37d106a8-15a4-483e-8247-fcb68b16eaf8)

Aki Tuomi reports : Vulnerability Details : Sending malformed NOOP command causes crash in submission, submission-login or lmtp service. Risk : Remote attacker can keep submission-login service down, causing denial of service attack. For lmtp the risk is neglible, as lmtp is usually behind a...

FreeBSD : OpenSMTPd -- critical LPE / RCE vulnerability (08f5c27d-4326-11ea-af8b-00155d0a0200)

OpenSMTPD developers report : An incorrect check allows an attacker to trick mbox delivery into executing arbitrary commands as root and lmtp delivery into executing arbitrary commands as an unprivileged user %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package...