CVE-2025-59032
dovecot: ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response
CVE-2025-59032 is fixed in 21 products on 1 platform, first by RHSA-2026:17602, released March 27, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0073
54th percentile
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 version. No publicly available exploits are known.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| dovecot · Debian 12.15 (bookworm) | 1:2.3.19.1+dfsg1-2.1+deb12u2 | DEBIAN-CVE-2025-59032 | Mar 27, 2026 |
| dovecot · Debian 13.5 (trixie) | 1:2.4.1+dfsg1-6+deb13u4 | DEBIAN-CVE-2025-59032 | Mar 27, 2026 |
| dovecot · Debian 14 | 1:2.4.3+dfsg1-1 | DEBIAN-CVE-2025-59032 | Mar 27, 2026 |
| dovecot · RHEL 10 | 2.3.21-16.el10_0.1 | RHSA-2026:17602 | Mar 27, 2026 |
| dovecot · RHEL 8 | 1:2.3.16-7.el8_10 | RHSA-2026:13830 | May 15, 2026 |
| dovecot · RHEL 9 | 1:2.3.16-18.el9_8 | RHSA-2026:19364 | May 15, 2026 |
| dovecot · almalinux 10 | 1:2.3.21-19.el10_2 | ALSA-2026:19149 | May 19, 2026 |
| dovecot · almalinux 8 | 1:2.3.16-7.el8_10 | ALSA-2026:13830 | May 5, 2026 |
| dovecot · almalinux 9 | 1:2.3.16-18.el9_8 | ALSA-2026:19364 | May 19, 2026 |
| dovecot · ol 10 | 1:2.3.21-16.el10_1.1 | ELSA-2026-13498 | May 5, 2026 |
| dovecot · ol 8 | 1:2.3.16-7.el8_10 | ELSA-2026-13830 | May 6, 2026 |
| dovecot · ol 9 | 1:2.3.16-15.el9_7.1 | ELSA-2026-13857 | May 6, 2026 |
| dovecot · rocky 10 | 1:2.3.21-19.el10_2 | RLSA-2026:19149 | May 29, 2026 |
| dovecot · rocky 8 | 1:2.3.16-7.el8_10 | RLSA-2026:13830 | May 7, 2026 |
| dovecot · rocky 9 | 1:2.3.16-18.el9_8 | RLSA-2026:19364 | May 28, 2026 |
| dovecot-auth-lua · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-auth-lua 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-auth-lua · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-auth-lua 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-auth-lua · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-auth-lua 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-core · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-core 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-core · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-core 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-core · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-core 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-devel · RHEL 8 | 1:2.3.16-7.el8_10 | RHSA-2026:13830 | May 15, 2026 |
| dovecot-devel · RHEL 9 | 1:2.3.16-18.el9_8 | RHSA-2026:19364 | May 15, 2026 |
| dovecot-devel · almalinux 10 | 1:2.3.21-19.el10_2 | ALSA-2026:19149 | May 19, 2026 |
| dovecot-devel · almalinux 8 | 1:2.3.16-7.el8_10 | ALSA-2026:13830 | May 5, 2026 |
| dovecot-devel · almalinux 9 | 1:2.3.16-18.el9_8 | ALSA-2026:19364 | May 19, 2026 |
| dovecot-devel · ol 10 | 1:2.3.21-16.el10_1.1 | ELSA-2026-13498 | May 5, 2026 |
| dovecot-devel · ol 8 | 1:2.3.16-7.el8_10 | ELSA-2026-13830 | May 6, 2026 |
| dovecot-devel · ol 9 | 1:2.3.16-15.el9_7.1 | ELSA-2026-13857 | May 6, 2026 |
| dovecot-flatcurve · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-flatcurve 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-gssapi · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-gssapi 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-gssapi · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-gssapi 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-gssapi · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-gssapi 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-imapd · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-imapd 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-imapd · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-imapd 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-imapd · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-imapd 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-ldap · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-ldap 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-ldap · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-ldap 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-ldap · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-ldap 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-lmtpd · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-lmtpd 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-lmtpd · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-lmtpd 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-lmtpd · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-lmtpd 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-lucene · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-lucene 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-managesieved · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-managesieved 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-managesieved · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-managesieved 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-managesieved · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-managesieved 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-mysql · RHEL 8 | 1:2.3.16-7.el8_10 | RHSA-2026:13830 | May 15, 2026 |
| dovecot-mysql · RHEL 9 | 1:2.3.16-18.el9_8 | RHSA-2026:19364 | May 15, 2026 |
| dovecot-mysql · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-mysql 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-mysql · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-mysql 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-mysql · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-mysql 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-mysql · almalinux 10 | 1:2.3.21-19.el10_2 | ALSA-2026:19149 | May 19, 2026 |
| dovecot-mysql · almalinux 8 | 1:2.3.16-7.el8_10 | ALSA-2026:13830 | May 5, 2026 |
| dovecot-mysql · almalinux 9 | 1:2.3.16-18.el9_8 | ALSA-2026:19364 | May 19, 2026 |
| dovecot-mysql · ol 10 | 1:2.3.21-16.el10_1.1 | ELSA-2026-13498 | May 5, 2026 |
| dovecot-mysql · ol 8 | 1:2.3.16-7.el8_10 | ELSA-2026-13830 | May 6, 2026 |
| dovecot-mysql · ol 9 | 1:2.3.16-15.el9_7.1 | ELSA-2026-13857 | May 6, 2026 |
| dovecot-pgsql · RHEL 8 | 1:2.3.16-7.el8_10 | RHSA-2026:13830 | May 15, 2026 |
| dovecot-pgsql · RHEL 9 | 1:2.3.16-18.el9_8 | RHSA-2026:19364 | May 15, 2026 |
| dovecot-pgsql · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-pgsql 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-pgsql · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-pgsql 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-pgsql · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-pgsql 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-pgsql · almalinux 10 | 1:2.3.21-19.el10_2 | ALSA-2026:19149 | May 19, 2026 |
| dovecot-pgsql · almalinux 8 | 1:2.3.16-7.el8_10 | ALSA-2026:13830 | May 5, 2026 |
| dovecot-pgsql · almalinux 9 | 1:2.3.16-18.el9_8 | ALSA-2026:19364 | May 19, 2026 |
| dovecot-pgsql · ol 10 | 1:2.3.21-16.el10_1.1 | ELSA-2026-13498 | May 5, 2026 |
| dovecot-pgsql · ol 8 | 1:2.3.16-7.el8_10 | ELSA-2026-13830 | May 6, 2026 |
| dovecot-pgsql · ol 9 | 1:2.3.16-15.el9_7.1 | ELSA-2026-13857 | May 6, 2026 |
| dovecot-pigeonhole · RHEL 8 | 1:2.3.16-7.el8_10 | RHSA-2026:13830 | May 15, 2026 |
| dovecot-pigeonhole · RHEL 9 | 1:2.3.16-18.el9_8 | RHSA-2026:19364 | May 15, 2026 |
| dovecot-pigeonhole · almalinux 10 | 1:2.3.21-19.el10_2 | ALSA-2026:19149 | May 19, 2026 |
| dovecot-pigeonhole · almalinux 8 | 1:2.3.16-7.el8_10 | ALSA-2026:13830 | May 5, 2026 |
| dovecot-pigeonhole · almalinux 9 | 1:2.3.16-18.el9_8 | ALSA-2026:19364 | May 19, 2026 |
| dovecot-pigeonhole · ol 10 | 1:2.3.21-16.el10_1.1 | ELSA-2026-13498 | May 5, 2026 |
| dovecot-pigeonhole · ol 8 | 1:2.3.16-7.el8_10 | ELSA-2026-13830 | May 6, 2026 |
| dovecot-pigeonhole · ol 9 | 1:2.3.16-15.el9_7.1 | ELSA-2026-13857 | May 6, 2026 |
| dovecot-pop3d · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-pop3d 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-pop3d · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-pop3d 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-pop3d · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-pop3d 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-sieve · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-sieve 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-sieve · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-sieve 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-sieve · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-sieve 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-solr · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-solr 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-solr · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-solr 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-solr · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-solr 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-sqlite · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-sqlite 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-sqlite · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-sqlite 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-sqlite · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-sqlite 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot-submissiond · Ubuntu 22.04.1 LTS (jammy) | 1:2.3.16+dfsg1-3ubuntu2.7 | dovecot-submissiond 1:2.3.16+dfsg1-3ubuntu2.7 | Apr 15, 2026 |
| dovecot-submissiond · Ubuntu 24.04.5 LTS (noble) | 1:2.3.21+dfsg1-2ubuntu6.3 | dovecot-submissiond 1:2.3.21+dfsg1-2ubuntu6.3 | Apr 15, 2026 |
| dovecot-submissiond · Ubuntu 25.10 (questing) | 1:2.4.1+dfsg1-5ubuntu4.1 | dovecot-submissiond 1:2.4.1+dfsg1-5ubuntu4.1 | Apr 15, 2026 |
| dovecot23 · sles 15.6 | 2.3.21.1-150200.76.1 | SUSE-SU-2026:4139-1 | Sep 14, 2026 |
| dovecot23 · sles 15.7 | 2.3.21.1-150200.76.1 | SUSE-SU-2026:4139-1 | Sep 14, 2026 |
| dovecot24 · opensuse-leap 16.0 | 2.4.3-160000.1.1 | OPENSUSE-SU-2026:20554-1 | Apr 16, 2026 |
| dovecot24 · sles 16.0 | 2.4.3-160000.1.1 | SUSE-SU-2026:21208-1 | Apr 16, 2026 |
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