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.
Affected products
postfix: postfix
References10
- www.mail-archive.com/[email protected]/msg00110.html Mailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2026/05/04/30 Mailing ListThird Party Advisory
- access.redhat.com/errata/RHSA-2026:25930
- access.redhat.com/errata/RHSA-2026:25932
- access.redhat.com/errata/RHSA-2026:26205
- access.redhat.com/errata/RHSA-2026:50963
- access.redhat.com/errata/RHSA-2026:50964
- access.redhat.com/errata/RHSA-2026:51034
- access.redhat.com/errata/RHSA-2026:51436
- access.redhat.com/errata/RHSA-2026:57174
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 44 · as of 13 November 2026
- CWE
- CWE-193
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