CVE-2026-12725
Full vulnerability record from the local CVENow database.
Description
A heap-based buffer overflow was found in dnsmasq. When DNSSEC validation and query logging are both enabled, logging of DS or DNSKEY replies containing unsupported algorithm or digest types can cause dnsmasq to write past the end of an internal logging buffer. A remote attacker able to supply such a DNS response may crash the dnsmasq process, resulting in denial of service.
Severity
MEDIUM
CVSS score
5.9
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-06-22 16:16:34.490000
Last modified
2026-11-05 17:18:04.650000
View original CVE JSON
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"sourceIdentifier": "[email protected]",
"published": "2026-06-22T16:16:34.490",
"lastModified": "2026-11-05T17:18:04.650",
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}
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{
"source": "[email protected]",
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"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
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"source": "[email protected]",
"type": "Secondary",
"description": [
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"source": "[email protected]",
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"source": "[email protected]",
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}