VULNERABILITY INTELLIGENCE
CVE-2026-31911
CVSS score5.5 MEDIUM
EPSS probability0.10%
CISA KEVNot currently listed
Published2026-09-05
Last modified2026-09-08
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Description
libpcap BPF interpreter calls abort() if it encounters a BPF instruction that has an invalid opcode. In particular uncommon use cases a crafted filter program can terminate the OS process.
Weakness classification
- security@tcpdump.org: CWE-617