CVE-2026-33102

CRITICAL EPSS 31.7%
Published Apr 23, 20262mo ago · Modified Jun 17, 20261w ago
9.3 CVSS 3.1
Critical
Find Similar
Published Apr 23, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.

CVSS Details

Base Score
9.3
Exploitability
2.8
Impact
5.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
31.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-601

Affected Products 1

VendorProductVersionRange
microsoft365_copilot*any

References 1

  • msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33102
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.