CVE-2026-31911
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.5
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS probability
- 0.10%
- CWE
- CWE-617
- Published
- 2026-09-05
- Last modified
- 2026-09-08
Affected products
- The Tcpdump Group libpcap
Weakness type
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