How severe is CVE-2025-54461?

CVE-2025-54461 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-54461 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-54461?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-54461 have an EU (EUVD) identifier?

Yes. CVE-2025-54461 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34738.

When was CVE-2025-54461 published?

CVE-2025-54461 was published on 2025-10-16 and last updated on 2026-06-17.

CVE-2025-54461

CVE-2025-54461 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-1220.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 6.9
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-34738
Weakness: CWE-1220
Published: 2025-10-16
Last modified: 2026-06-17

Description

ChatLuck contains an insufficient granularity of access control vulnerability in Invitation of Guest Users. If exploited, an uninvited guest user may register itself as a guest user.

Frequently asked questions

What is CVE-2025-54461?: ChatLuck contains an insufficient granularity of access control vulnerability in Invitation of Guest Users. If exploited, an uninvited guest user may register itself as a guest user.
How severe is CVE-2025-54461?: CVE-2025-54461 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-54461 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-54461?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-54461 have an EU (EUVD) identifier?: Yes. CVE-2025-54461 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34738.
When was CVE-2025-54461 published?: CVE-2025-54461 was published on 2025-10-16 and last updated on 2026-06-17.

References

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