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SPOJENO PŘES CVE ZDI-26-584: dnsmasq DNSSEC NSEC/NSEC3 Type Bitmap Processing Infinite Loop Denial-of-Service Vulnerability

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of dnsmasq. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.5. The following CVEs are assigned: CVE-2026-4890.

EPSS 0.01 CVSS 7.5 CVE-2026-4890 dnsmasq US

· Zero Day Initiative · ZDI-26-584: dnsmasq DNSSEC NSEC/NSEC3 Type Bitmap Processing Infinite Loop Denial-of-Service Vulnerability · Microsoft Security · CVE-2026-4890 CVE-2026-4890

SPOJENO PŘES CVE ZDI-26-441: dnsmasq DNS Response Heap-based Buffer Overflow Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of dnsmasq. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.1. The following CVEs are assigned: CVE-2026-2291.

EPSS 0.01 CVSS 8.1 CVE-2026-2291 dnsmasq US

· Zero Day Initiative · ZDI-26-441: dnsmasq DNS Response Heap-based Buffer Overflow Remote Code Execution Vulnerability · Microsoft Security · CVE-2026-2291 CVE-2026-2291