CVE-2026-95508
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.
- Score
- CVSS 3.1 7.4 High
- Status
- Awaiting Analysis - secalert@redhat.com
- Published
- 2026-09-22
- Last modified
- 2026-09-22
- Weaknesses
- CWE-787
Affected products
References
- https://access.redhat.com/security/cve/CVE-2026-95508
- https://bugzilla.redhat.com/show_bug.cgi?id=2537748
