PT-2026-55320 · Microsoft · Exchange Online

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CVE-2026-54998

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Published

2026-07-02

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Updated

2026-07-07

CVSS v2.0

9.0

High

VectorAV:N/AC:L/Au:S/C:C/I:C/A:C
Name of the Vulnerable Software and Affected Versions Microsoft Exchange Online (affected versions not specified)
Description Incorrect authorization allows an authorized attacker to elevate privileges over a network.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

LPE

Incorrect Authorization

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Weakness Enumeration

Related Identifiers

BDU:2026-09887
CVE-2026-54998

Affected Products

Exchange Online