Cloudanix VulnDB

CVE-2026-31912

Medium · 5.5

CVSS

5.5

EPSS

0.1%

Published

Sep 5, 2026

CISA due date

—

The record

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.

Affected packages

Ecosystem Package Introduced Fixed

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