CVEvulnerability

CVE-2026-56191

10.0 CRITICAL Published 2026-07-24 Modified 2026-10-24 Official page ↗
Status
Analyzed
Published
2026-07-24
Last modified
2026-10-24
Assigner
[email protected]
CVSS 3.1 ([email protected])
10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-287

Description

Improper authentication in Microsoft Exchange Online allows an unauthorized attacker to perform tampering over a network.

Affected configurations

• microsoft exchange online

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References