How severe is CVE-2025-54882?

CVE-2025-54882 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-54882 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-54882?

CVE-2025-54882 affects Himmelblau-idm Himmelblau. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-54882?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-54882 have an EU (EUVD) identifier?

Yes. CVE-2025-54882 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23898.

When was CVE-2025-54882 published?

CVE-2025-54882 was published on 2025-08-07 and last updated on 2026-06-17.

CVE-2025-54882

CVE-2025-54882 is a high-severity vulnerability in Himmelblau-idm Himmelblau with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-522.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-23898
Weakness: CWE-522
Affected product: Himmelblau-idm Himmelblau
Published: 2025-08-07
Last modified: 2026-06-17

Description

Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. In versions 0.8.0 through 0.9.21 and 1.0.0-beta through 1.1.0, Himmelblau stores the cloud TGT received during logon in the Kerberos credential cache. The created credential cache collection and received credentials are stored as world readable. This is fixed in versions 0.9.22 and 1.2.0. To work around this issue, remove all read access to Himmelblau caches for all users except for owners.

Frequently asked questions

What is CVE-2025-54882?: Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. In versions 0.8.0 through 0.9.21 and 1.0.0-beta through 1.1.0, Himmelblau stores the cloud TGT received during logon in the Kerberos credential cache. The created credential cache collection and received credentials are stored as world readable. This is fixed in versions 0.9.22 and 1.2.0. To work around this issue, remove all read access to Himmelblau caches for all users except for owners.
How severe is CVE-2025-54882?: CVE-2025-54882 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-54882 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-54882?: CVE-2025-54882 affects Himmelblau-idm Himmelblau. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-54882?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-54882 have an EU (EUVD) identifier?: Yes. CVE-2025-54882 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23898.
When was CVE-2025-54882 published?: CVE-2025-54882 was published on 2025-08-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:himmelblau-idm:himmelblau:*:*:*:*:*:*:*:*

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