CVE-2026-2291

HighCVSS 7.3/10Last modified Jul 20, 2026

Description

dnsmasqs extract_name() function can be abused to cause a heap buffer overflow, allowing an attacker to inject false DNS cache entries, which could result in DNS lookups to redirect to an attacker-controlled IP address, or to cause a DoS.

Metrics

CVSS 3.1 7.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
May 11, 2026
Last modified
Jul 20, 2026
NVD status
Awaiting Analysis

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CVE-2026-2291: High severity, CVSS 7.3 | Vulnix