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.

Exploitation none

Automatable yes

Technical Impact partial

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.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

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 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-121
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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

Sign in to view the affected projects.

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

Updated: 2026-09-08T13:24:53.901Z

cve-icon NVD

Status : Undergoing Analysis

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

Modified: 2026-09-08T14:17:27.367

Link: CVE-2026-77101

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses