CVE-2026-77095: CWE-476: NULL Pointer Dereference in Commvault Commvault Cloud
Description
CVE-2026-77095 is a high-severity vulnerability in Commvault Cloud involving a NULL pointer dereference that affects service availability. It impacts multiple Commvault components including CommServe, Webserver, Command Center, MediaAgents, Clients, and HyperScale. The issue is resolved in maintenance releases, and customers are advised to upgrade to these fixed versions to mitigate the risk.
CVSS v4.0
Score 7.1high
Affected software
Commvault
Commvault Cloud
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-476 (NULL Pointer Dereference), occurs in Commvault Cloud software and leads to a denial of service by causing service availability issues. The flaw affects several Commvault components and is present in versions >=11.36.0 <11.36.127, >=11.40.0 <11.40.78, >=11.44.0 <11.44.25, and >=11.46.0 <11.46.30. The CVSS 4.0 base score is 7.1, indicating high severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on availability. No known exploits in the wild have been reported.
Potential Impact
The vulnerability can cause service disruptions due to NULL pointer dereference, impacting availability of Commvault Cloud services and components. This can affect backup and data management operations reliant on these services.
Mitigation Recommendations
A fix is available via resolved maintenance releases. Customers should update all Commvault installations including CommServe, Webserver, Command Center, MediaAgents, Clients, and HyperScale to the fixed versions beyond the affected ranges. Patch status is confirmed by vendor advisory instructions to upgrade to resolved maintenance releases.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Commvault
- Date Reserved
- 2026-08-20T10:56:58.071Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ace415e2cdf04f656747dba
Added to database: 10/13/2026, 14:34:06 UTC
Last enriched: 10/13/2026, 14:48:46 UTC
Last updated: 10/13/2026, 18:57:33 UTC
Views: 11
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