CVE-2026-43964
3.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Postfix | Postfix | 2.3 < 3.8.16 | affected |
| Postfix | Postfix | 3.9 < 3.9.10 | affected |
| Postfix | Postfix | 3.10 < 3.10.9 | affected |
Weaknesses
- CWE-193: CWE-193 Off-by-one Error
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
CVE Program Container
Additional References
postfix: buffer over-read via malformed enhanced status code
Additional References
- 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-2026:25930
- https://access.redhat.com/errata/RHSA-2026:25932
- https://access.redhat.com/errata/RHSA-2026:26205
References
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