Postfix Postfix
At a glance
- Source
- NVD
- EPSS
- EPSS 0.51 % · percentile 44 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mitre
- NVD status
- Modified
Description
Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a buffer over-read and process crash via an enhanced status code that lacks text after the third number.
Weaknesses (CWE)
- CWE-193 — Off-by-one Error
References
- https://www.mail-archive.com/postfix-announce@postfix.org/msg00110.html
- http://www.openwall.com/lists/oss-security/2026/05/04/30
- https://access.redhat.com/security/cve/CVE-2026-43964
- https://bugzilla.redhat.com/show_bug.cgi?id=2466488
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43964.json
- https://access.redhat.com/errata/RHSA-2026:57174
- https://access.redhat.com/errata/RHSA-2026:51436
- https://access.redhat.com/errata/RHSA-2026:25930
- https://access.redhat.com/errata/RHSA-2026:25932
- https://access.redhat.com/errata/RHSA-2026:26205
- https://access.redhat.com/errata/RHSA-2026:51034
- https://access.redhat.com/errata/RHSA-2026:50963
- https://access.redhat.com/errata/RHSA-2026:50964
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | LOW 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L | mitre |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat-SADP |
| CVSS 3.1 | LOW 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD · cve@mitre.org (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
European references
- ENISA EUVD · EUVD-2026-27115
- GCVE · GCVE-0-2026-43964
CERT-FR advisories
- CERTFR-2026-AVI-0986 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:postfix:postfix:*:*:*:*:*:*:*:*< 3.8.16cpe:2.3:a:postfix:postfix:*:*:*:*:*:*:*:*≥ 3.9.0 < 3.9.10cpe:2.3:a:postfix:postfix:*:*:*:*:*:*:*:*≥ 3.10.0 < 3.10.9
Affected products
| Product | Versions |
|---|---|
| Postfix · Postfix | affected 2.3 < 3.8.16 ; affected 3.9 < 3.9.10 ; affected 3.10 < 3.10.9 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |