CVE-2026-95508

Updated on 22 Sep 2026

Severity

7.4 High severity

Details

CVSS score
7.4
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

Overview

About vulnerability

A heap-based buffer overflow was found in the DHCPv6 and TFTP response builders of libslirp. When the host is configured with a small interface MTU, a guest-supplied DHCPv6 CLIENTID option or TFTP blksize option can overflow the reply buffer with attacker-controlled content and length, resulting in denial of service and potentially arbitrary code execution in the host process. The default interface MTU is not affected.

Details

Affected packages:
libslirp @ 4.4.0 (+2 more)