CVE-2026-87696: microsoft exchange_server, microsoft exchange_server_subscription_edition

CVSS 7.5 (high) · published 2026-10-13

Improper verification of cryptographic signature in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

Affected products (NVD): microsoft exchange_server, microsoft exchange_server_subscription_edition

Fixed in (NVD): 15.02.2562.056

Weakness: CWE-347

Source: NVD CVE-2026-87696

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-87696

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