SEPTEMBER 17, 2026
Live Feed
Back to database
Case File

CVE-2026-31912

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 vulnerability affects the libpcap BPF interpreter, which fails to properly handle certain filter programs, potentially allowing crafted filters to access OS process memory beyond the intended buffer limits. This could lead to unauthorized memory reads, posing a risk of information disclosure on both 32-bit and 64-bit systems. Organizations utilizing libpcap in their network monitoring or packet capture solutions should prioritize addressing this vulnerability to mitigate potential data exposure risks.

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-2026-31912
Severity
MEDIUM
CVSS
5.5
EPSS
0.10%

Original NVD Description

libpcap BPF interpreter detects neither reaching the end of the filter program buffer due to lack of a return instruction nor executing a jump instruction with an offset that translates to a pointer outside of the buffer. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading the OS process memory in the 32GiB around the buffer on 64-bit architectures and in the entire address space on 32-bit architectures.