AUGUST 4, 2026
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Case File

CVE-2021-45951

CRITICAL · CVSS 9.8 EPSS 2.59% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-01-01 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

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-2021-45951
Severity
CRITICAL
CVSS
9.8
EPSS
2.59%

Original NVD Description

Dnsmasq 2.86 has a heap-based buffer overflow in check_bad_address (called from check_for_bogus_wildcard and FuzzCheckForBogusWildcard). NOTE: the vendor's position is that CVE-2021-45951 through CVE-2021-45957 "do not represent real vulnerabilities, to the best of our knowledge.

Related CVEs

Other vulnerabilities affecting the same vendor(s)