CVE-2026-31911
abort() in libpcap before 1.10.7 on an invalid BPF opcode
- State
- Published
- Severity
- 5.5 Medium
- Published
- Sep 5, 2026
- Updated
- Sep 8, 2026
- Reserved
- Mar 10, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | Tcpdump |
Weaknesses
- CWE-617 Reachable Assertion
Affected Products
| Product | Versions |
|---|---|
libpcapThe Tcpdump Group |
|
References
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