CommServe contained a stack-based buffer overflow issue affecting service availability. Software customers upgrade to resolved maintenance release. Update CommServe.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Commvault Commvault Cloud unknown
Version Status Constraints
11.46.0 affected ≤ 11.46.19
11.44.0 affected ≤ 11.44.19
11.40.0 affected ≤ 11.40.71
11.36.0 affected ≤ 11.36.122

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://documentation.commvault.com/securityadvisories/CV_2026_08_3.html cve-icon cve-icon
History

Tue, 08 Sep 2026 13:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-120

Tue, 08 Sep 2026 12:30:00 +0000

Type Values Removed Values Added
Description CommServe contained a stack-based buffer overflow issue affecting service availability. Software customers upgrade to resolved maintenance release. Update CommServe.
Title CommServe Stack-based Buffer Overflow
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Commvault

Published:

Updated: 2026-09-08T13:24:56.965Z

Reserved: 2026-08-20T10:57:52.110Z

Link: CVE-2026-77101

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-08T13:17:25.860

Modified: 2026-09-08T13:17:25.860

Link: CVE-2026-77101

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-08T13:30:18Z

Weaknesses