CVE Tools
Track your stack

Dovecot

51 CVEs tracked since 2007. Since Apr 2007, none of them reached CISA KEV.

Dovecot CVEs per month

Apr 2007 to Oct 2026. Point at a month, or focus the strip and use the arrow keys.
Dovecot CVEs per month, with the share now in CISA KEV
MonthCVEsIn CISA KEV
2007-0410
2007-051 or fewer
2007-061 or fewer
2007-071 or fewer
2007-0810
2007-091 or fewer
2007-101 or fewer
2007-111 or fewer
2007-121 or fewer
2008-0110
2008-021 or fewer
2008-0320
2008-041 or fewer
2008-051 or fewer
2008-061 or fewer
2008-071 or fewer
2008-081 or fewer
2008-091 or fewer
2008-1030
2008-1110
2008-1210
2009-011 or fewer
2009-021 or fewer
2009-031 or fewer
2009-041 or fewer
2009-051 or fewer
2009-061 or fewer
2009-071 or fewer
2009-08no snapshot
2009-0910
2009-100
2009-1110
2009-121 or fewer
2010-010
2010-020
2010-031 or fewer
2010-041 or fewer
2010-0510
2010-060
2010-070
2010-080
2010-0910
2010-1040
2010-110
2010-120
2011-010
2011-020
2011-030
2011-040
2011-0530
2011-060
2011-070
2011-080
2011-091 or fewer
2011-100
2011-110
2011-120
2012-010
2012-020
2012-030
2012-040
2012-050
2012-060
2012-070
2012-081 or fewer
2012-091 or fewer
2012-101 or fewer
2012-111 or fewer
2012-120
2013-010
2013-020
2013-0310
2013-040
2013-050
2013-060
2013-070
2013-080
2013-090
2013-100
2013-110
2013-1210
2014-011 or fewer
2014-020
2014-031 or fewer
2014-041 or fewer
2014-0520
2014-061 or fewer
2014-071 or fewer
2014-080
2014-091 or fewer
2014-101 or fewer
2014-111 or fewer
2014-121 or fewer
2015-011 or fewer
2015-021 or fewer
2015-030
2015-040
2015-050
2015-061 or fewer
2015-070
2015-080
2015-090
2015-100
2015-110
2015-120
2016-010
2016-020
2016-030
2016-040
2016-050
2016-060
2016-070
2016-08no snapshot
2016-090
2016-100
2016-11no snapshot
2016-120
2017-01no snapshot
2017-0210
2017-031 or fewer
2017-04no snapshot
2017-051 or fewer
2017-06no snapshot
2017-071 or fewer
2017-082 or fewer
2017-091 or fewer
2017-101 or fewer
2017-11no snapshot
2017-121 or fewer
2018-012 or fewer
2018-021 or fewer
2018-0320
2018-04no snapshot
2018-05no snapshot
2018-062 or fewer
2018-072 or fewer
2018-082 or fewer
2018-092 or fewer
2018-102 or fewer
2018-11no snapshot
2018-122 or fewer
2019-01no snapshot
2019-021 or fewer
2019-03no snapshot
2019-04no snapshot
2019-0520
2019-06no snapshot
2019-072 or fewer
2019-082 or fewer
2019-092 or fewer
2019-102 or fewer
2019-112 or fewer
2019-122 or fewer
2020-012 or fewer
2020-0220
2020-032 or fewer
2020-04no snapshot
2020-05no snapshot
2020-062 or fewer
2020-07no snapshot
2020-0830
2020-091 or fewer
2020-101 or fewer
2020-111 or fewer
2020-122 or fewer
2021-0120
2021-022 or fewer
2021-03no snapshot
2021-042 or fewer
2021-052 or fewer
2021-0630
2021-072 or fewer
2021-083 or fewer
2021-092 or fewer
2021-102 or fewer
2021-112 or fewer
2021-122 or fewer
2022-012 or fewer
2022-022 or fewer
2022-033 or fewer
2022-043 or fewer
2022-053 or fewer
2022-063 or fewer
2022-073 or fewer
2022-083 or fewer
2022-093 or fewer
2022-102 or fewer
2022-113 or fewer
2022-123 or fewer
2023-013 or fewer
2023-023 or fewer
2023-03no snapshot
2023-043 or fewer
2023-053 or fewer
2023-064 or fewer
2023-073 or fewer
2023-084 or fewer
2023-093 or fewer
2023-104 or fewer
2023-114 or fewer
2023-124 or fewer
2024-014 or fewer
2024-024 or fewer
2024-034 or fewer
2024-044 or fewer
2024-055 or fewer
2024-064 or fewer
2024-074 or fewer
2024-084 or fewer
2024-093 or fewer
2024-104 or fewer
2024-114 or fewer
2024-123 or fewer
2025-014 or fewer
2025-023 or fewer
2025-035 or fewer
2025-044 or fewer
2025-054 or fewer
2025-064 or fewer
2025-075 or fewer
2025-084 or fewer
2025-094 or fewer
2025-104 or fewer
2025-114 or fewer
2025-125 or fewer
2026-015 or fewer
2026-025 or fewer
2026-03110
2026-046 or fewer
2026-057 or fewer
2026-067 or fewer
2026-077 or fewer
2026-088 or fewer
2026-099 or fewer
2026-106 or fewer

Products

The products that kept showing up in Dovecot's monthly top three, with their CVEs summed over those months.

  1. Dovecot5124 months

Latest CVEs

The 15 most recently published vulnerabilities affecting Dovecot.

  1. CVE-2026-42006An attacker can cause uncontrolled memory usage with excessive bracing over IMAP. The fix in CVE-2026-27857 was incomplete, only blocking one way of doing this, so there was still another way left ...4.3
  2. CVE-2026-40020Attacker can use the IMAP SETACL command to inject the anyone permission to user's dovecot-acl file even if imap_acl_allow_anyone=no. This causes folders to be spammed to all users. The impact is l...3.1
  3. CVE-2026-40016Attacker 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. Attacker can use this to d...5.3
  4. CVE-2026-33603Attacker can use a specially crafted base64 exchange between Dovecot and Client to fake SCRAM TLS channel binding. This requires that the attacker is able to position itself between Dovecot and the...6.8
  5. CVE-2026-27851When 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. This can enable SQL / LDA...7.4
  6. CVE-2026-27859A mail message containing excessive amount of RFC 2231 MIME parameters causes LMTP to use too much CPU. A suitably formatted mail message causes mail delivery process to consume large amounts of CP...5.3
  7. CVE-2026-27860If auth_username_chars is empty, it is possible to inject arbitrary LDAP filter to Dovecot's LDAP authentication. This leads to potentially bypassing restrictions and allows probing of LDAP structu...3.7
  8. CVE-2026-27858Attacker 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 repeat...7.5
  9. CVE-2026-27857Sending "NOOP (((...)))" command with 4000 parenthesis open+close results in ~1MB extra memory usage. Longer commands will result in client disconnection. This 1 MB can be left allocated for longer...4.3
  10. CVE-2026-27856Doveadm credentials are verified using direct comparison which is susceptible to timing oracle attack. An attacker can use this to determine the configured credentials. Figuring out the credential ...7.4
  11. CVE-2026-24031Dovecot SQL based authentication can be bypassed when auth_username_chars is cleared by admin. This vulnerability allows bypassing authentication for any user and user enumeration. Do not clear aut...7.7
  12. CVE-2026-27855Dovecot OTP authentication is vulnerable to replay attack under specific conditions. If auth cache is enabled, and username is altered in passdb, then OTP credentials can be cached so that same OTP...6.8
  13. CVE-2026-0394When 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 d...5.3
  14. CVE-2025-59032ManageSieve 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...7.5
  15. CVE-2025-59031Dovecot has provided a script to use for attachment to text conversion. This script unsafely handles zip-style attachments. Attacker can use specially crafted OOXML documents to cause unintended fi...4.3

The record

Peak rank
#21 in Oct 2010
Busiest month shown
Mar 2026, 11 CVEs
Months with a KEV entry
0 since Apr 2007
Monthly snapshots
24 since 2007
Dovecot's full record, month by month