AUGUST 25, 2026
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Case File

CVE-2026-54998

HIGH · CVSS 8.8 EPSS 0.65%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-07-02 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. It affects Microsoft, Exchange.

CVE
CVE-2026-54998
Severity
HIGH
CVSS
8.8
EPSS
0.65%
Microsoft Exchange

Original NVD Description

Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.

Related CVEs

Other vulnerabilities affecting the same vendor(s)

CVE-2026-69555 CRITICAL CVE-2026-69400 CRITICAL CVE-2026-68789 CRITICAL CVE-2026-68782 CRITICAL CVE-2026-66800 HIGH CVE-2026-66309 CRITICAL