CVE-2026-77106

Analyzed Analyzed - Analysis Complete

Missing Authorization in Commvault cvlaunchd Command Execution

Publication date: 2026-09-08

Last updated on: 2026-09-11

Assigner: Commvault

Description

Cvlaunchd contained a missing authorization issue affecting command execution authorization. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including Commserve, Webserver, Command Center, Media Agents, Clients and HyperScale X.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-08

Last Modified

2026-09-11

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-77106

Affected Vendors & Products

Vendor	Product	Version / Range
commvault	commvault	From 11.36.0 (inc) to 11.36.123 (exc)
commvault	commvault	From 11.40.0 (inc) to 11.40.72 (exc)
commvault	commvault	From 11.44.0 (inc) to 11.44.20 (exc)
commvault	commvault	From 11.46.0 (inc) to 11.46.20 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

CVE-2026-77106 is a high-severity vulnerability in Commvault's Cvlaunchd component. It involves a missing authorization check that could allow unauthorized users to execute commands without proper permissions. The flaw affects Commvault installations running versions between 11.36.0 and 11.46.19 on Linux and Windows platforms.

Detection Guidance

Check Commvault version using the Command Center under Manage > Servers or Manage > Infrastructure > Servers to verify if updates are installed. Compare installed versions against patched releases (11.36.123+, 11.40.72+, 11.44.20+, 11.46.20+).

Impact Analysis

This vulnerability could allow attackers to execute unauthorized commands on affected systems. This may lead to data breaches, system compromise, or unauthorized access to sensitive information. The impact depends on the privileges of the compromised account and the system's configuration.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Organizations must address this flaw to maintain compliance and avoid potential penalties.

Mitigation Strategies

Upgrade all Commvault components including Commserve, Webserver, Command Center, Media Agents, Clients, and HyperScale X to the latest patched versions immediately. Unsupported versions must be upgraded to a supported release.

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