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Critical severity9.8NVD Advisory· Published Oct 13, 2026· Updated Oct 13, 2026

CVE-2026-83869

CVE-2026-83869

Description

Integer underflow (wrap or wraparound) in DNS Server allows an unauthorized attacker to execute code over a network.

Affected products

1

Microsoft/DNS serverllm-fuzzy

Patches

Vulnerability mechanics

References

1

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83869nvd

News mentions

0

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