What is CVE-2025-53013?

CVE-2025-53013 is a medium-severity vulnerability in Himmelblau-idm Himmelblau, classified under Improper Authentication. CVSS score: 5.2/10. Published 2025-06-26.

How severe is CVE-2025-53013?

Medium severity. CVSS v3 base score is 5.2 out of 10.

Auth bypass in Himmelblau-idm Himmelblau

CVE-2025-53013

Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. A vulnerability present in versions 0.9.10 through 0.9.16 allows a user to authenticate to a Linux host via Himmelblau using an *invalid* Linux Hello PIN, pro…

Vulnerability class: Broken Authentication

EPSS: 0.001 (29.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.2 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N.

Affected products

Himmelblau-idm Himmelblau — versions >= 0.9.10, < 0.9.17

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

https://github.com/himmelblau-idm/himmelblau/security/advisories/GHSA-j93j-pwm6-p97j (x_refsource_CONFIRM)
https://github.com/himmelblau-idm/himmelblau/commit/64b03739f1d5ee472b1cff3ed20ed9af1c65a6f8 (x_refsource_MISC)
https://github.com/himmelblau-idm/himmelblau/commit/78477d684df710d57c10091c87b92665cfac98ae (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-53013?: CVE-2025-53013 is a medium-severity vulnerability in Himmelblau-idm Himmelblau, classified under Improper Authentication. CVSS score: 5.2/10. Published 2025-06-26.
How severe is CVE-2025-53013?: Medium severity. CVSS v3 base score is 5.2 out of 10.