CVE-2026-43964
- State
- Published
- Severity
- 3.7 Low
- Published
- May 4, 2026
- Updated
- Aug 20, 2026
- Reserved
- May 4, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 3.7 Low | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L | mitre |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat-SADP |
Weaknesses
- CWE-193 Off-by-one Error
Affected Products
| Product | Versions |
|---|---|
PostfixPostfix |
|
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-2026-43964vdb-entry
- RHBZ#2466488issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43964.json
- https://access.redhat.com/errata/RHSA-2026:57174vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:51436vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25930vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25932vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:26205vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:51034vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:50963vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:50964vendor-advisory
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