CVE-2026-33102

criticalpriority · track · 0EPSS 0.007 · 53 %ileDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.72% (53rd) EPSS
CVSS 9.3 · critical
Is it mine?
5 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-24

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

01

cvss

Technical severity, 0–10. One row per scoring source.

9.3
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.5–9.3

v3.19.3criticalAV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:Nsecondary · FSTEC (BDU) RU
v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:Csecondary · ENISA EU
v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:Nsecondary · secure@microsoft.com USexploitability 2.8 · impact 5.8
v3.18.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)
v3.19.3criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-601USCWE-601USCWE-601US
04

affected products (5)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-1256Microsoft Cloud-Produkte: Mehrere SchwachstellenDeutsch2026-04-23csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Microsoft Azure, Microsoft 365 Copilot, Microsoft Dynamics 365 und Microsoft Power Apps ausnutzen, um seine Privilegien zu erhöhen, beliebigen Code auszuführen und Spoofing-Angriffe durchzuführen.

  • msrc_CVE-2026-33102Microsoft 365 Copilot Elevation of Privilege Vulnerability2026-04-23csaf · msrc_csafUS

    To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundmsrc_csafnvdNVDCVE.orgMITRE
published 2026-04-23modified 2026-06-17
08

references (3)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan