CVE-2026-80092

mediumpriority · track · 21EPSS 0.006 · 49 %ileFRUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.62% (49th) EPSS

CVSS 5.3 · medium

Is it mine?

2 products

Check your exposure

Who says so?

2 sources

msrc_csaf · certfr

EPSS · scored 2026-10-27

Authentication bypass by assumed-immutable data in Microsoft Identity Web allows an authorized attacker to elevate privileges over a network.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedmicrosoft-identity-web v3msrc_csaf
4.16.1:Security Update:https://github.com/AzureAD/microsoft-identity-web/blob/master/changelog.md
https://github.com/AzureAD/microsoft-identity-web/blob/master/changelog.md

cvss

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

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.3mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:Nprimary · secure@microsoft.com USexploitability 1.6 · impact 3.6

v3.14.9mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.15.3mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

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

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

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-302USCWE-302USCWE-302US

affected products (2)

Products and version ranges known to be affected.

Microsoft microsoft-identity-web v3all versionsfixedmsrc_csafUS
Microsoft microsoft-identity-web v3< 3.16.0msrc_csafUS

advisories (2)

Vendor and ecosystem advisories describing this.

msrc_CVE-2026-80092Microsoft Identity Web Elevation of Privilege Vulnerability2026-10-15csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
CERTFR-2026-AVI-1332Multiples vulnérabilités dans les produits MicrosoftFrançais2026-10-16vendor · certfrFR

sources

Which sources assert this record, and when.

msrc_csaf certfr NVD CVE.org MITRE

published 2026-10-16modified 2026-10-20

references (1) nvd

External citations — patches, advisories, analysis.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80092

scry

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