CVE-2026-77094
Received Received - Intake

Out-of-Bounds Write in Commvault Software

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Commvault

Description
CvFWD contained an out-of-bounds write affecting service availability. Software customers upgrade to resolved maintenance release. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including CommServe, Webserver, Command Center, MediaAgents, Clients and HyperScale.

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Meta Information

Published
2026-10-13
Last Modified
2026-10-13
Generated
2026-10-13
AI Q&A
2026-10-13
EPSS Evaluated
N/A
NVD
CVE-2026-77094
EUVD
EUVD-2026-98758

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
Commvault Commvault Cloud 11.46.0
Commvault Commvault Cloud 11.44.0
Commvault Commvault Cloud 11.40.0
Commvault Commvault Cloud 11.36.0

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

CVE-2026-77094 is an out-of-bounds write vulnerability in CvFWD that affects service availability. It allows unauthorized memory access which can disrupt normal operations of Commvault software components.

Detection Guidance

Detection involves checking installed Commvault versions against affected ranges. Log into the Command Center and review the Server listing page for versions 11.46.0 to 11.46.29, 11.44.0 to 11.44.24, 11.40.0 to 11.40.77, or 11.36.0 to 11.36.126.

Impact Analysis

This vulnerability can lead to service disruptions or crashes in affected Commvault components like CommServe, Webserver, Command Center, MediaAgents, Clients, and HyperScale. It may cause downtime or reduced functionality in systems using vulnerable versions.

Mitigation Strategies

Upgrade all Commvault components (CommServe, Webserver, Command Center, MediaAgents, Clients, HyperScale) to resolved versions starting from 11.46.30, 11.44.25, 11.40.78, or 11.36.127 respectively.

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