Vulnerability · Published Sep 8, 2026 · Assigned by Commvault
CVE-2026-77105CommServe Privilege Escalation
High 8.7
In plain English
A high-severity security flaw in Commvault Cloud from Commvault. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Severity (CVSS 4.0)8.7High
Exploit odds (30 days)0.3%top 76.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
CommServe contained a cryptographic signature verification issue affecting privilege management. Software customers upgrade to resolved maintenance release. Update CommServe and Web Server.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Commvault | Commvault Cloud | 11.46.0 – through 11.46.1911.44.0 – through 11.44.1911.40.0 – through 11.40.7111.36.0 – through 11.36.122 |
Weakness: CWE-347 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N