TI-2026-71817 Aliases CVE-2026-97333 GHSA-v6mr-wxq4-84f9

Stack-based buffer overflow in Commvault Cloud QAPI

LOW 31CWE-121Published 2026-10-13 · Updated 2026-10-13

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

Commvault Cloud versions from 11.46.0 through 11.46.29, from 11.44.0 through 11.44.24, from 11.40.0 through 11.40.77 and from 11.36.0 through 11.36.126 are affected. A stack-based buffer overflow (CWE-121) in QAPI lets a network attacker with low privileges affect service availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00239 15th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Commvault	Commvault Cloud	11.46.0 – 11.46.29; 11.44.0 – 11.44.24; 11.40.0 – 11.40.77; 11.36.0 – 11.36.126	—	No fix listed	CNA

Commvault Cloud VendorCommvault Affected 11.46.0 – 11.46.29; 11.44.0 – 11.44.24; 11.40.0 – 11.40.77; 11.36.0 – 11.36.126 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:commvault:commvault::::::::	—	—	Commvault

cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:* Versions — — ·Commvault

Remediation

The sources list no fixed version for Commvault Cloud. The source advises customers to upgrade CommServe, Web Server, Command Center and Index Server to a resolved maintenance release.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Timeline

2026-10-13 Threatist record created from CVE-2026-97333
2026-10-13 Alias added: GHSA-v6mr-wxq4-84f9

References

Other 1

https://documentation.commvault.com/securityadvisories/CV_2026_10_4.html

TI-2025-24197 Commvault Command Center Innovation Release <= 11.38.25 Unathenticated Install Package Path Traversal KEVCVSS 4.0CRITICAL 9.3
TI-2025-03473 Commvault Web Server unspecified vulnerability KEVCVSS 4.0HIGH 8.7
TI-2021-13983 This vulnerability allows remote attackers to execute arbitrary code on affected… CVSS 3.1HIGH 8.8
TI-2017-13252 A Command Injection issue was discovered in ContentStore/Base/CVDataPipe.dll in Commvault… CVSS 3.0CRITICAL 9.8
TI-2021-13982 Unrestricted file upload in Commvault CommCell CVSS 3.1HIGH 8.8
TI-2025-35673 Path traversal in Commvault CommCell CVSS 4.0HIGH 8.7

See all 42 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences