SEPTEMBER 17, 2026
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Case File

CVE-2026-6244

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 division by zero error when processing crafted filter programs that utilize the 'div #k' and 'mod #k' ALU instructions without proper validation of the immediate value. This flaw can lead to application crashes or undefined behavior, potentially impacting systems relying on libpcap for packet capture and analysis. Users and organizations utilizing libpcap in environments where custom BPF filters are employed should prioritize patching this vulnerability to mitigate potential disruptions.

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-2026-6244
Severity
MEDIUM
CVSS
5.5
EPSS
0.10%

Original NVD Description

libpcap BPF interpreter for the 'div #k' and 'mod #k' ALU instructions does not check whether the immediate value is zero. In particular uncommon use cases a crafted filter program can cause a division by zero.