CVE-2026-43964 LOW

CVE-2026-43964

Vendor Postfix
Product Postfix
Weakness CWE-193
Published May 4, 2026
Last update June 30, 2026
View on NVD All CVEs

CVSS base score

3.7/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 4, 2026 CVE published
June 30, 2026 Record updated