What is CVE-2026-80092?

CVE-2026-80092 is a medium-severity vulnerability in Microsoft Microsoft-Identity-Web, classified under Authentication Bypass by Assumed-Immutable Data. CVSS score: 5.3/10. Published 2026-10-16.

How severe is CVE-2026-80092?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Microsoft Microsoft-Identity-Web

CVE-2026-80092

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

Published 2026-10-16 · last modified 2026-10-16.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Microsoft Microsoft-Identity-Web

Weakness classification (CWE)

CWE-302 — Authentication Bypass by Assumed-Immutable Data

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80092 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-80092?: CVE-2026-80092 is a medium-severity vulnerability in Microsoft Microsoft-Identity-Web, classified under Authentication Bypass by Assumed-Immutable Data. CVSS score: 5.3/10. Published 2026-10-16.
How severe is CVE-2026-80092?: Medium severity. CVSS v3 base score is 5.3 out of 10.