Medium severity5.5NVD Advisory· Published Sep 5, 2026

CVE-2026-31911

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Tcpdump/Libpcapllm-create

Patches

Vulnerability mechanics

References

github.com/the-tcpdump-group/libpcap/commit/a715bcdde830299cba4171514385cb17ec19b6e9nvd

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cvss	0.358
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000