CVE-2025-59032
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
02 Description
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
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.73% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 53.8% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-07.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-03-27 08:10Z7 MO AGO
- Last updated
- 2026-07-15 01:25Z3 MO AGO
- Reserved
- 2025-09-08
- Assigning CNA
- OX
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- Data version
- 5.2
- Document digest
- 3100194f2380321ee67e242a8b26aebe84bc9e28b7e3fae722af5e325587ed72
05 Affected products
06 References
- documentation.open-xchange.comhttps://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2025-59032
- bugzilla.redhat.comRHBZ#2452172https://bugzilla.redhat.com/show_bug.cgi?id=2452172
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-59032.json
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:26564
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:17602
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:13498
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:19149
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:13830
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:19455
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:19453
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:18053
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:17630
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:17628
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:17625
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:17626
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:13857
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:19364
07 Fixed in
AlmaLinux 8
- dovecot Fixed in 1:2.3.16-7.el8_10
- dovecot-devel Fixed in 1:2.3.16-7.el8_10
- dovecot-mysql Fixed in 1:2.3.16-7.el8_10
- dovecot-pgsql Fixed in 1:2.3.16-7.el8_10
- dovecot-pigeonhole Fixed in 1:2.3.16-7.el8_10
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- dovecot Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.16-15.el9_7.1
- Affected before 1:2.3.16-18.el9_8
- dovecot-devel Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.16-15.el9_7.1
- Affected before 1:2.3.16-18.el9_8
- dovecot-mysql Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.16-15.el9_7.1
- Affected before 1:2.3.16-18.el9_8
- dovecot-pgsql Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.16-15.el9_7.1
- Affected before 1:2.3.16-18.el9_8
- dovecot-pigeonhole Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.16-15.el9_7.1
- Affected before 1:2.3.16-18.el9_8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- dovecot Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.21-16.el10_1.1
- Affected before 1:2.3.21-19.el10_2
- dovecot-devel Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.21-16.el10_1.1
- Affected before 1:2.3.21-19.el10_2
- dovecot-mysql Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.21-16.el10_1.1
- Affected before 1:2.3.21-19.el10_2
- dovecot-pgsql Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.21-16.el10_1.1
- Affected before 1:2.3.21-19.el10_2
- dovecot-pigeonhole Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.21-16.el10_1.1
- Affected before 1:2.3.21-19.el10_2
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- dovecot Fixed in 1:2.3.16-7.el8_10
- dovecot-devel Fixed in 1:2.3.16-7.el8_10
- dovecot-mysql Fixed in 1:2.3.16-7.el8_10
- dovecot-pgsql Fixed in 1:2.3.16-7.el8_10
- dovecot-pigeonhole Fixed in 1:2.3.16-7.el8_10
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- dovecot Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.16-15.el9_7.1
- Affected before 1:2.3.16-18.el9_8
- dovecot-devel Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.16-15.el9_7.1
- Affected before 1:2.3.16-18.el9_8
- dovecot-mysql Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.16-15.el9_7.1
- Affected before 1:2.3.16-18.el9_8
- dovecot-pgsql Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.16-15.el9_7.1
- Affected before 1:2.3.16-18.el9_8
- dovecot-pigeonhole Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.16-15.el9_7.1
- Affected before 1:2.3.16-18.el9_8
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 10
- dovecot Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.21-16.el10_1.1
- Affected before 1:2.3.21-19.el10_2
- dovecot-devel Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.21-16.el10_1.1
- Affected before 1:2.3.21-19.el10_2
- dovecot-mysql Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.21-16.el10_1.1
- Affected before 1:2.3.21-19.el10_2
- dovecot-pgsql Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.21-16.el10_1.1
- Affected before 1:2.3.21-19.el10_2
- dovecot-pigeonhole Fixed
A version is affected if any line below covers it.
- Affected before 1:2.3.21-16.el10_1.1
- Affected before 1:2.3.21-19.el10_2
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- dovecot Fixed in 1:2.3.19.1+dfsg1-2.1+deb12u2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- dovecot Fixed in 1:2.4.1+dfsg1-6+deb13u4
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- dovecot Fixed in 1:2.4.3+dfsg1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- dovecot No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- dovecot No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- dovecot No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- dovecot Fixed in 1:2.3.16+dfsg1-3ubuntu2.7
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- dovecot Fixed in 1:2.3.21+dfsg1-2ubuntu6.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- dovecot Fixed in 1:2.4.1+dfsg1-5ubuntu4.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- dovecot No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.