CVE-2025-6966 MEDIUM

CVE-2025-6966: Null-pointer dereference in python-apt TagSection.keys()

Vendor Canonical
Product python-apt
Weakness CWE-476
Published December 5, 2025
Last update December 15, 2025
View on NVD All CVEs

CVSS base score

6.9/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

Description

NULL pointer dereference in TagSection.keys() in python-apt on APT-based Linux systems allows a local attacker to cause a denial of service (process crash) via a crafted deb822 file with a malformed non-UTF-8 key.

Key dates

Disclosure timeline

December 5, 2025 CVE published
December 15, 2025 Record updated