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Medium 5.5Published Dec 5, 2025
CVE-2025-6966NULL 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…
Updated under an hour ago ()
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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
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-476
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Sep 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
ubuntu python-apt ubuntu:python-apt | before 0.9.3.11; from 1.6.0 before 1.6.6; from 2.0.0 before 2.0.1; from 2.7.0 before 2.7.7; 0.9.3.5; 0.9.3.5; 0.9.3.11; 0.9.3.11; and 35 more ranges | NVD |
debian debian_linux debian:debian_linux | 11.0 | NVD |
References
- https://bugs.launchpad.net/ubuntu/+source/python-apt/+bug/2091865exploit, issue-tracking, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2025/12/msg00019.htmlmailing-list, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.