CVE-2026-62912
Analyzed Analyzed - Analysis Complete

Denial of Service in Microsoft Exchange Server via Deserialization

Publication date: 2026-08-11

Last updated on: 2026-08-13

Assigner: Microsoft Corporation

Description
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to deny service over a network.

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Meta Information

Published
2026-08-11
Last Modified
2026-08-13
Generated
2026-09-01
AI Q&A
2026-08-11
EPSS Evaluated
2026-08-30
NVD
CVE-2026-62912
EUVD
EUVD-2026-56414

Affected Vendors & Products

Showing 38 associated CPEs
Vendor Product Version / Range
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2019
microsoft exchange_server 2016
microsoft exchange_server 2019
microsoft exchange_server 2016
microsoft exchange_server 2019
microsoft exchange_server 2019
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2019
microsoft exchange_server 2019
microsoft exchange_server 2019
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2019
microsoft exchange_server 2016
microsoft exchange_server 2019
microsoft exchange_server 2016
microsoft exchange_server 2016
microsoft exchange_server 2019
microsoft exchange_server 2016
microsoft exchange_server 2019
microsoft exchange_server 2016
microsoft exchange_server 2019
microsoft exchange_server 2019
microsoft exchange_server 2019
microsoft exchange_server_subscription_edition to 15.02.2562.046 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

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Executive Summary

This vulnerability involves deserialization of untrusted data in Microsoft Exchange Server. An authorized attacker can exploit this to cause a denial of service over a network.

Impact Analysis

An attacker could disrupt services by exploiting this flaw, leading to downtime for Microsoft Exchange Server operations.

Compliance Impact

The vulnerability allows denial of service via deserialization of untrusted data in Microsoft Exchange Server. This could disrupt availability of critical systems, potentially violating compliance requirements for data access and processing timeliness in GDPR and HIPAA.

Mitigation Strategies

Apply the latest security updates from Microsoft for Exchange Server as soon as possible to patch the deserialization flaw.

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