Critical 9.3Published Oct 13, 2026

CVE-2026-77099CVFS Command Execution

Updated under an hour ago (Oct 26, 2026, 6:10 PM ET)

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It affects Commvault Cloud and 1 other product. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.39%, higher than 32% of scored CVEs.

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Exploited in the last 30 days

CVFS contained an input validation issue affecting command execution. Software customers upgrade to resolved maintenance release. Update CVFS.

CVSS: 9.3 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-78
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.39% (percentile 32)
Assigned by: Commvault
NVD analysis: Awaiting Analysis
Record last updated: Oct 13, 2026
First seen by InfoSec Signals: Oct 13, 2026

Affected products

Affected products

Commvault Commvault Cloud commvault:cloud (from the name)	from 11.46.0 through 11.46.29; fixed at 11.46.30; from 11.44.0 through 11.44.24; fixed at 11.44.25; from 11.40.0 through 11.40.77; fixed at 11.40.78; from 11.36.0 through 11.36.126; fixed at 11.36.127	CNA record
Commvault Grid(HSX) CVFS commvault:grid_hsx_cvfs (from the name)	from 5.0.1.0 through 5.0.14.4; fixed at 5.0.14.5	CNA record

References

References

https://documentation.commvault.com/securityadvisories/CV_2026_10_9.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.