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CVE-2026-69730 is a critical use-after-free vulnerability in Windows DNS Server. A remote unauthenticated attacker can send a specially crafted network packet to an affected DNS service, trigger use of freed memory, and execute arbitrary code. The vulnerability is reported to affect Windows Server 2012 and later and Windows 10, has a CVSS v3 score of 9.8, and is assessed as Exploitation More Likely.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
19 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A potentially wormable DNS remote-code-execution vulnerability affecting supported Windows versions, allowing unauthenticated remote code execution without user interaction.
A critical, wormable Windows DNS Server vulnerability with a CVSS score of 9.8, characterized as similar in significance to SigRed.
A high-severity use-after-free vulnerability in Windows DNS Server.
Windows DNS Server use-after-free vulnerability enabling unauthenticated network-based remote code execution.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.