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High severity8.8NVD Advisory· Published Aug 11, 2026· Updated Aug 11, 2026

CVE-2026-62817

CVE-2026-62817

Description

Out-of-bounds write in Windows DNS allows an unauthorized attacker to execute code over an adjacent network.

Affected products

1

Microsoft/Windows DNSllm-fuzzy

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62817nvd

News mentions

1

Microsoft Patch Tuesday Update August 2026 – 394 Vulnerabilities Fixed, Including 3 Zero-Days
Cyber Security News · Aug 11, 2026