MEDIUM 5.5 NVD

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

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.

References

https://github.com/the-tcpdump-group/libpcap/commit/a715bcdde830299cba4171514385cb17ec19b6

Published: 2026-09-05 · Source: NVD · Feed updated: 2026-09-05

This medium severity vulnerability with a CVSS score of 5.5 was published on 2026-09-05 via NVD.

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