CVE-2026-70082

Analyzed Analyzed - Analysis Complete

Uncaught Exception in Windows DNS Triggers DoS

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description

Uncaught exception in Windows DNS allows an unauthorized attacker to deny service over a network.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-13

Last Modified

2026-10-16

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-70082

EUVD

EUVD-2026-99151

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_server_2016	to 10.0.14393.9612 (exc)
microsoft	windows_server_2019	to 10.0.17763.9376 (exc)
microsoft	windows_server_2025	to 10.0.26100.33650 (exc)
microsoft	windows_server_2022	to 10.0.20348.5761 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-248	An exception is thrown from a function, but it is not caught.

Attack-Flow Graph

Executive Summary

This vulnerability is a denial of service issue in Windows DNS caused by an uncaught exception. An unauthorized attacker can exploit it to disrupt DNS services over a network, leading to service unavailability.

Impact Analysis

If exploited, this vulnerability could cause DNS service outages, disrupting network connectivity and access to critical services. Users may experience delays or inability to resolve domain names.

Compliance Impact

This vulnerability allows an unauthorized attacker to deny DNS service, which could disrupt critical network operations. For GDPR, this may impact availability of personal data processing systems. For HIPAA, it could disrupt healthcare systems handling protected health information. Downtime risks non-compliance with availability requirements in both regulations.

Mitigation Strategies

Apply the latest Windows DNS server updates from Microsoft to patch the uncaught exception vulnerability. Monitor network traffic for unusual DNS service disruptions or errors.

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