CVE catalog
CVE-2025-61962
fetchmail vulnerability
- Severity
- Medium · CVSS 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.41% · Oct 25, 2026
In fetchmail before 6.5.6, the SMTP client can crash when authenticating upon receiving a 334 status code in a malformed context.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | fetchmail | sid | 6.6.9-1 | fixed |
| Debian | fetchmail | forky | 6.6.9-1 | fixed |
| Debian | fetchmail | trixie | 6.4.39-1 | vulnerable |
| Debian | fetchmail | bookworm | 6.4.37-1 | vulnerable |
| Ubuntu | fetchmail | noble | Not reported | vulnerable |
| Ubuntu | fetchmail | noble | 6.4.38-1ubuntu4.1 | fixed |
| Ubuntu | fetchmail | 16.04 | 6.3.26-1 | vulnerable |
| Ubuntu | fetchmail | 16.04 | 6.3.26-2 | vulnerable |
| Ubuntu | fetchmail | 18.04 | 6.3.26-3 | vulnerable |
| Ubuntu | fetchmail | 18.04 | 6.3.26-3build1 | vulnerable |
| Ubuntu | fetchmail | 18.04 | 6.3.26-3ubuntu0.1~18.04.1 | vulnerable |
| Ubuntu | fetchmail | 20.04 | 6.4.0~rc4-1ubuntu1 | vulnerable |
| Ubuntu | fetchmail | 20.04 | 6.4.1-1ubuntu1 | vulnerable |
| Ubuntu | fetchmail | 20.04 | 6.4.2-2 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.22-1 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.23-1 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.24-1 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.25-1 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.26-1 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.27-1 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.27-1ubuntu0.1 | fixed |
| Ubuntu | fetchmail | 24.04 | 6.4.37-1 | vulnerable |
| Ubuntu | fetchmail | 24.04 | 6.4.38-1ubuntu1 | vulnerable |
| Ubuntu | fetchmail | 24.04 | 6.4.38-1ubuntu3 | vulnerable |
| Ubuntu | fetchmail | 24.04 | 6.4.38-1ubuntu4 | vulnerable |
| Ubuntu | fetchmail | 24.04 | 6.4.38-1ubuntu4.1 | fixed |
| Ubuntu | fetchmail | 25.10 | 6.4.39-1 | vulnerable |
| Ubuntu | fetchmail | 25.10 | 6.5.4-0ubuntu1 | vulnerable |
| Ubuntu | fetchmail | 25.10 | 6.5.4-0ubuntu2 | fixed |
| Ubuntu | fetchmail | 26.04 | 6.5.4-0ubuntu2 | fixed |
| Ubuntu | fetchmail | 22.04 | 6.4.22-1 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.23-1 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.24-1 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.25-1 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.26-1 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.27-1 | vulnerable |
| Ubuntu | fetchmail | 22.04 | 6.4.27-1ubuntu0.1 | fixed |
| Ubuntu | fetchmail | 24.04 | 6.4.37-1 | vulnerable |
| Ubuntu | fetchmail | 24.04 | 6.4.38-1ubuntu1 | vulnerable |
| Ubuntu | fetchmail | 24.04 | 6.4.38-1ubuntu3 | vulnerable |
| Ubuntu | fetchmail | 24.04 | 6.4.38-1ubuntu4 | vulnerable |
| Ubuntu | fetchmail | 24.04 | 6.4.38-1ubuntu4.1 | fixed |
| Opensuse | fetchmail | leap 16.0 | 6.5.2-160000.3.1 | fixed |
| Suse | fetchmail | linux enterprise server 16.0 | 6.5.2-160000.3.1 | fixed |
| Suse | fetchmail | linux enterprise server for sap applications 16.0 | 6.5.2-160000.3.1 | fixed |
| Opensuse | fetchmail | tumbleweed | 6.5.6-1.1 | fixed |
| Suse | fetchmail | linux enterprise server ltss extended security 12 sp5 | 6.3.26-13.21.1 | fixed |
| Suse | fetchmail | linux enterprise module for basesystem 15 sp6 | 6.4.22-150600.35.3.1 | fixed |
| Suse | fetchmail | linux enterprise module for basesystem 15 sp7 | 6.4.22-150600.35.3.1 | fixed |
| Suse | fetchmail | linux enterprise module for desktop applications 15 sp6 | 6.4.22-150600.35.3.1 | fixed |
| Suse | fetchmail | linux enterprise module for desktop applications 15 sp7 | 6.4.22-150600.35.3.1 | fixed |
| Opensuse | fetchmail | leap 15.6 | 6.4.22-150600.35.3.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | fetchmail | source | sid | 6.5.6-1 | not yet assigned | Not reported | [1117136] |
| Debian | fetchmail | source | forky | 6.5.6-1 | not yet assigned | Not reported | [1117136] |
| Debian | fetchmail | source | trixie | (unfixed) | not yet assigned | Not reported | [1117136] |
| Debian | fetchmail | source | bookworm | (unfixed) | not yet assigned | Not reported | [1117136] |
| Ubuntu | fetchmail | deb | noble | 6.4.38-1ubuntu4.1 | Not reported | Not reported | Not reported |
| Ubuntu | fetchmail | deb | 22.04 | 6.4.27-1ubuntu0.1 | Not reported | UBUNTU-CVE-2025-61962 | Not reported |
| Ubuntu | fetchmail | deb | 24.04 | 6.4.38-1ubuntu4.1 | Not reported | UBUNTU-CVE-2025-61962 | Not reported |
| Ubuntu | fetchmail | deb | 25.10 | 6.5.4-0ubuntu2 | Not reported | UBUNTU-CVE-2025-61962 | Not reported |
| Ubuntu | fetchmail | deb | 26.04 | 6.5.4-0ubuntu2 | Not reported | UBUNTU-CVE-2025-61962 | Not reported |
| Ubuntu | fetchmail | deb | 22.04 | 6.4.27-1ubuntu0.1 | Not reported | USN-7838-1 | Not reported |
| Ubuntu | fetchmail | deb | 24.04 | 6.4.38-1ubuntu4.1 | Not reported | USN-7838-1 | Not reported |
| Opensuse | fetchmail | rpm | leap 16.0 | 6.5.2-160000.3.1 | Not reported | OPENSUSE-SU-2026:20432-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server 16.0 | 6.5.2-160000.3.1 | Not reported | SUSE-SU-2026:20935-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server for sap applications 16.0 | 6.5.2-160000.3.1 | Not reported | SUSE-SU-2026:20935-1 | Not reported |
| Opensuse | fetchmail | rpm | tumbleweed | 6.5.6-1.1 | Not reported | OPENSUSE-SU-2025:15653-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise server ltss extended security 12 sp5 | 6.3.26-13.21.1 | Not reported | SUSE-SU-2025:3966-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise module for basesystem 15 sp6 | 6.4.22-150600.35.3.1 | Not reported | SUSE-SU-2025:3845-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise module for basesystem 15 sp7 | 6.4.22-150600.35.3.1 | Not reported | SUSE-SU-2025:3845-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise module for desktop applications 15 sp6 | 6.4.22-150600.35.3.1 | Not reported | SUSE-SU-2025:3845-1 | Not reported |
| Suse | fetchmail | rpm | linux enterprise module for desktop applications 15 sp7 | 6.4.22-150600.35.3.1 | Not reported | SUSE-SU-2025:3845-1 | Not reported |
| Opensuse | fetchmail | rpm | leap 15.6 | 6.4.22-150600.35.3.1 | Not reported | SUSE-SU-2025:3845-1 | Not reported |
Notes
[trixie] fetchmail: Minor issue [bookworm] fetchmail: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [fetchmail]Affected
Details (2)
6.4.37-1· amd64 · bookwormAffected
usn · fetchmail · debian · bookworm; usn · fetchmail · debian · 12
6.4.37-1· arm64 · bookwormAffected
usn · fetchmail · debian · bookworm; usn · fetchmail · debian · 12
[Debian 13 (Trixie)]
[openSUSE Tumbleweed]
- [fetchmailconf]Unknown
Source package: [fetchmail]
Details (1)
6.6.1-3.3· x86_64 · tumbleweedUnknown · Fixed:
6.5.6-1.1Version impact unknown
usn · fetchmail · opensuse · tumbleweed
- [fetchmail]Fixed
Source package: [fetchmail]
Details (1)
6.6.1-3.3· x86_64 · tumbleweedFixed · Fixed:
6.5.6-1.1usn · fetchmail · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2025_3845-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2025-61962]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-61962]
- [https://osv.dev/vulnerability/SUSE-SU-2025:3845-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:3966-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20935-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-61962]
- [https://osv.dev/vulnerability/USN-7838-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2025:15653-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:20432-1]
- [https://security-tracker.debian.org/tracker/CVE-2025-61962]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-61962.json]
- [https://ubuntu.com/security/notices/USN-7838-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-2202.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]