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.
- Published Sep 5, 2026
- CVSS 5.5 medium
- 0.1% chance of exploitation in the next 30 days (EPSS)
- A fix is available