CVE-2026-43964

Public on 2026-05-04

Modified on 2026-05-06

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.

Severity

Low

See what this means

CVSS v3 Base Score

3.7

See breakdown

Affected Packages

Platform	Package	Release Date	Advisory	Status
Amazon Linux 2 - Core	postfix			Pending Fix
Amazon Linux 2023	postfix			Pending Fix

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-43964 Mitre: CVE-2026-43964