abort() in libpcap before 1.10.7 on an invalid BPF opcode (The Tcpdump Group libpcap)

CVE-2026-31911
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.10 % · percentile 1 ()
State
PUBLISHED
Published
Updated
Assigner
Tcpdump
NVD status
Awaiting Analysis

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.

Weaknesses (CWE)

  • CWE-617 — Reachable Assertion

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HTcpdump
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · security@tcpdump.org (Secondary)

European references

CERT-FR advisories

Affected products

ProductVersions
The Tcpdump Group · libpcapaffected 0 < 1.10.7

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD