CVE-2026-55005

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CVSS 3.1

8.8 high

EPSS

<1%p58

Published

Jul 14, 2026 (Jul 14, 2026)

Modified

Jul 24, 2026

Description

Heap-based buffer overflow in Microsoft Exchange Server allows an authorized attacker to execute code over a network.

Vendors: microsoft
Products: exchange server, exchange server subscription edition
Weakness: CWE-122
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.9%)

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