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CVE-2020-25681 is a heap-based buffer overflow in dnsmasq versions before 2.83. The flaw occurs while dnsmasq sorts DNS resource-record sets (RRSets) before validating them with DNSSEC data. A network attacker able to forge DNS replies that dnsmasq accepts as valid can cause arbitrary data to be written beyond a heap buffer.
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No valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability identified as CVE-2020-25681, addressed by a Unity Linux security update published on 2026-08-06. The supplied CVSS v3 vector rates impact to confidentiality, integrity, and availability as high, with high attack complexity and no privileges or user interaction required.
A DNSSEC-related buffer-overflow vulnerability listed as part of DNSpooq, but explicitly stated not to affect ASUS routers in this advisory.
A DNSpooq vulnerability in dnsmasq DNSSEC response handling that can cause a buffer overflow, potentially leading to denial of service or arbitrary code execution.
A heap-based buffer overflow in dnsmasq when sorting RRSets before DNSSEC validation, potentially allowing remote code execution or denial of service.
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Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.