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CVE-2026-97333: CWE-121: Stack-based Buffer Overflow in Commvault Commvault Cloud

0
High
VulnerabilityCVE-2026-97333cvecve-2026-97333cwe-121
Published: 10/13/2026 (10/13/2026, 14:27:01 UTC)
Source: CVE Database V5
Vendor/Project: Commvault
Product: Commvault Cloud

Description

QAPI contained a stack-based buffer overflow affecting service availability. Software customers upgrade to resolved maintenance release. Update CommServe, Web Server, Command Center and Index Server.

CVSS v4.0

Score 7.1high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
None
Vuln. Integrity
None
Vuln. Availability
High
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected software

Commvault

Commvault Cloud

Affected versions
>=11.46.0 <11.46.30>=11.44.0 <11.44.25>=11.40.0 <11.40.78>=11.36.0 <11.36.127

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 10/13/2026, 14:48:21 UTC

Technical Analysis

CVE-2026-97333 is a stack-based buffer overflow vulnerability (CWE-121) found in the QAPI component of Commvault Commvault Cloud. It affects service availability by potentially causing crashes or denial of service. The vulnerability is present in multiple version ranges of the product, specifically versions >=11.46.0 and <11.46.30, >=11.44.0 and <11.44.25, >=11.40.0 and <11.40.78, and >=11.36.0 and <11.36.127. Customers are advised to upgrade to resolved maintenance releases that address this issue by updating CommServe, Web Server, Command Center, and Index Server components.

Potential Impact

The vulnerability can cause service availability issues due to a stack-based buffer overflow in the QAPI component. This may lead to denial of service conditions impacting affected Commvault Cloud deployments. No known exploits in the wild have been reported.

Mitigation Recommendations

Upgrade affected components (CommServe, Web Server, Command Center, and Index Server) to the resolved maintenance releases that fix this vulnerability. The vendor advisory recommends applying these updates to remediate the issue.

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Technical Details

Data Version
5.2
Assigner Short Name
Commvault
Date Reserved
2026-09-24T12:01:45.453Z
Cvss Version
4.0
State
PUBLISHED

Threat ID: 6ace41602cdf04f656747dc3

Added to database: 10/13/2026, 14:34:08 UTC

Last enriched: 10/13/2026, 14:48:21 UTC

Last updated: 10/13/2026, 18:57:33 UTC

Views: 12

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