CVE-2025-54781 | Himmelblau leaks an Intune service access token in its logs

Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. When debugging is enabled for Himmelblau in version 1.0.0, the himmelblaud_tasks service leaks an Intune service access token to the system journal. This short-lived token can be used to detect the host's Intune compliance status, and may permit additional administrative operations for the Intune host device (though the API for these operations is undocumented). This is fixed in version 1.1.0. To workaround this issue, ensure that Himmelblau debugging is disabled.

Published: 2025-08-01 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-54781 is rated Low Risk (18.1/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.06%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-54781

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-28 0.01% 0.06% +0.05%
2 2025-08-02 0.01%

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-54781

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.8 3.1 LOW
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
1.1 1.4 [email protected]

Weakness enumeration for CVE-2025-54781

OS Trackers for CVE-2025-54781

vendor priority summary link
suse low CVE-2025-54781 severity low: SUSE including 4 source package names (himmelblau, himmelblau-sshd-config, libnss_himmelblau2, pam-himmelblau), 4 product×package rows across 1 product lines (SUSE Linux Enterprise Module for Basesystem 15 SP7): Known Not Affected 4. https://www.suse.com/security/cve/CVE-2025-54781/

Affected software / configurations for CVE-2025-54781

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-54781

cvelogic Threat Intelligence