SEPTEMBER 17, 2026
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Case File

CVE-2026-31911

MEDIUM · CVSS 5.5 EPSS 0.10% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-05 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The libpcap BPF interpreter is vulnerable to a denial-of-service condition, as it can call abort() when encountering a BPF instruction with an invalid opcode, potentially terminating the OS process. This issue primarily affects systems utilizing libpcap for packet capture, particularly in scenarios with crafted filter programs. Organizations relying on libpcap for network monitoring and analysis should prioritize addressing this vulnerability to mitigate potential service interruptions.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-31911
Severity
MEDIUM
CVSS
5.5
EPSS
0.10%

Original NVD 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.