CVE-2026-97333
QAPI stack-based buffer overflow
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
QAPI stack-based buffer overflow
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.
- Record
CVE-2026-97333- CVSS 4.0
- 7.1 High
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 - Weakness
- CWE-121
- Updated
- 2026-11-02
EUVDEUVD-2026-98763
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.
- Record
EUVD-2026-98763- CVSS 4.0
- 7.1 High
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-v6mr-wxq4-84f9
QAPI contained a stack-based buffer overflow affecting service availability. Software customers...
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.
- Record
GHSA-v6mr-wxq4-84f9- CVSS 4.0
- 7.1 High
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-121
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-97333- CVSS 4.0
- 7.1 High
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-121
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-97333 is a high vulnerability (CVSS 7.1) in Commvault Cloud, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 15th percentile. No source names a fixed version.