CVE records

Every CVE as the CVE Program publishes it, refreshed every ten minutes, with NVD's analysis, CISA's known-exploited status and a healthcare tag. Subscribers get the CVEs that match their own systems on My program, by email as they are published. Where the data comes from: sources.

Updated under an hour ago ()

What this means for you

This week: 5,500 CVEs published, 358 critical, and 7 newly confirmed exploited. Add your stack to see whether any of them hit you.

Published in the last 7 days
5,500
Show in the list
Critical, last 7 days
358
Show in the list
Healthcare-tagged, last 7 days
5
Show in the list
Known exploited (CISA KEV)
1,747
Show in the list

Showing CVEs that name the product open-xchange:dovecot. Show all products

16 CVEs, showing 1 to 16
CVESeverityTitlePublished
CVE-2025-59028High 7.5When sending invalid base64 SASL data, login process is disconnected from the auth server, causing all active authentication sessions to fail.Mar 27, 2026
CVE-2025-59031Medium 4.3Dovecot has provided a script to use for attachment to text conversion.Mar 27, 2026
CVE-2025-59032High 7.5ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response.Mar 27, 2026
CVE-2026-0394Medium 5.3When dovecot has been configured to use per-domain passwd files, and they are placed one path component above /etc, or slash has been added to allowed characters, path traversal can happen if the dom…Mar 27, 2026
CVE-2026-24031High 8.2Dovecot SQL based authentication can be bypassed when auth_username_chars is cleared by admin.Mar 27, 2026
CVE-2026-27855Medium 5.9Dovecot OTP authentication is vulnerable to replay attack under specific conditions.Mar 27, 2026
CVE-2026-27856Medium 5.9Doveadm credentials are verified using direct comparison which is susceptible to timing oracle attack.Mar 27, 2026
CVE-2026-27857High 7.5Sending "NOOP (((...)))" command with 4000 parenthesis open+close results in ~1MB extra memory usage.Mar 27, 2026
CVE-2026-27858High 7.5Attacker can send a specifically crafted message before authentication that causes managesieve to allocate large amount of memory.Mar 27, 2026
CVE-2026-27859Medium 5.3A mail message containing excessive amount of RFC 2231 MIME parameters causes LMTP to use too much CPU.Mar 27, 2026
CVE-2026-27860Medium 5.3If auth_username_chars is empty, it is possible to inject arbitrary LDAP filter to Dovecot's LDAP authentication.Mar 27, 2026
CVE-2026-27851Critical 9.1When safe filter is used with variable expansion, all following pipelines on the same string are incorrectly interpreted as safe too, enabling unsafe data to be unescaped.May 12, 2026
CVE-2026-33603Medium 5.3Attacker can use a specially crafted base64 exchange between Dovecot and Client to fake SCRAM TLS channel binding.May 12, 2026
CVE-2026-40016Medium 6.5Attacker can upload a malicious Sieve script over ManageSieve service (or locally) to bypass configured CPU time limits for Sieve up to 130 times of the configured limit.May 12, 2026
CVE-2026-40020Medium 4.3Attacker can use the IMAP SETACL command to inject the anyone permission to user's dovecot-acl file even if imap_acl_allow_anyone=no.May 12, 2026
CVE-2026-42006Medium 4.3An attacker can cause uncontrolled memory usage with excessive bracing over IMAP.May 12, 2026

CVSS is the assigning CNA's score where it gives one, otherwise NVD's. The healthcare tag is a documented heuristic (a list of clinical and health IT vendors, and clinical terms in the description), not a classification. The CVE record is authoritative.

Your cookie choices
We use essential cookies to run this site, and, only with your consent, an advertising cookie from Google to measure whether our ads lead to sign-ups and subscriptions. See our for details.