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CVE-2026-31911: CWE-617 Reachable Assertion in The Tcpdump Group libpcap

0
Medium
VulnerabilityCVE-2026-31911cvecve-2026-31911cwe-617
Published: 09/05/2026 (09/05/2026, 18:50:03 UTC)
Source: CVE Database V5
Vendor/Project: The Tcpdump Group
Product: libpcap

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.

CVSS v3.1

Score 5.5medium

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

GitHub Actionsmore threats →cve
libpcap
pkg:github/libpcap
Affected versions
<1.10.7

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Data Version
5.2
Assigner Short Name
Tcpdump
Date Reserved
2026-03-10T09:30:50.972Z
Cvss Version
3.1
State
PUBLISHED
Remediation Level
null

Threat ID: 6a9c688aacd9273b49460ebc

Added to database: 09/05/2026, 19:07:54 UTC

Last updated: 09/05/2026, 21:52:30 UTC

Views: 8

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