Name: CVE-2025-6966: NULL Pointer Dereference
Creator: Rapid7
Published: 2025-12-05T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2025-6966, CWE-476, CVSS 5.5, EPSS 0.00015

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.

CVSS Details

CVSS 4.0 Base Score: 6.9 (MEDIUM)
CVSS 4.0 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)
CVSS 3.1 Base Score: 5.5
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade python-apt	Dec 17, 2025	Dec 17, 2025
Ubuntu	—	Upgrade python-apt-devUpgrade python3-apt (Ubuntu Pro)Upgrade python-apt-common (Ubuntu Pro)Upgrade python3-aptUpgrade python-apt (Ubuntu Pro)Upgrade python-apt-dev (Ubuntu Pro)Upgrade python-apt-doc (Ubuntu Pro)	Dec 10, 2025	Dec 5, 2025

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CVSS Details

Covered by Rapid7

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