Vulnerability in Commvault Commcell

CVE-2025-57791

A security vulnerability has been identified that allows remote attackers to inject or manipulate command-line arguments passed to internal components due to insufficient input validation. Successful exploitation results in a valid user session for a low privilege role.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.245 (97.8th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-57791: rose from 0.214 to 0.245.

EPSS over last 30 days · oldest: 0.214 · newest: 0.245 · change: +0.030

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-57791?
CVE-2025-57791 is a medium-severity vulnerability in Commvault Commcell, classified under Argument Injection. CVSS score: 6.5/10. Published 2025-08-20.
How severe is CVE-2025-57791?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2025-57791 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.