How severe is CVE-2025-57789?

CVE-2025-57789 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-57789 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-57789?

CVE-2025-57789 affects Commvault. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-57789?

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

Does CVE-2025-57789 have an EU (EUVD) identifier?

Yes. CVE-2025-57789 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25257.

When was CVE-2025-57789 published?

CVE-2025-57789 was published on 2025-08-20 and last updated on 2026-06-17.

CVE-2025-57789

CVE-2025-57789 is a medium-severity vulnerability in Commvault with a CVSS 3.x base score of 5.4. 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-257.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 5.3
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-25257
Weakness: CWE-257
Affected product: Commvault
Published: 2025-08-20
Last modified: 2026-06-17

Description

During the brief window between installation and the first administrator login, remote attackers may exploit the default credential to gain admin control. This is limited to the setup phase, before any jobs have been configured.

Frequently asked questions

What is CVE-2025-57789?: During the brief window between installation and the first administrator login, remote attackers may exploit the default credential to gain admin control. This is limited to the setup phase, before any jobs have been configured.
How severe is CVE-2025-57789?: CVE-2025-57789 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-57789 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-57789?: CVE-2025-57789 affects Commvault. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-57789?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-57789 have an EU (EUVD) identifier?: Yes. CVE-2025-57789 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-25257.
When was CVE-2025-57789 published?: CVE-2025-57789 was published on 2025-08-20 and last updated on 2026-06-17.

References

https://documentation.commvault.com/securityadvisories/CV_2025_08_4.html

Affected products (1)

cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:*

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