CVE-2026-77093
Received Received - Intake

Integer Overflow in Commvault Software Affecting Availability

Publication date: 2026-10-13

Last updated on: 2026-10-13

Assigner: Commvault

Description
CvFWD contained an integer overflow affecting service availability. 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-2026-77093
EUVD
EUVD-2026-98757

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-2026-77093 is an integer overflow vulnerability in CvFWD that affects service availability. It allows potential disruption of Commvault services due to improper handling of integer values.

Detection Guidance

This vulnerability is specific to Commvault software and requires checking installed versions. Run 'cvfwd --version' or check Commvault services in your system's service manager to identify outdated installations.

Impact Analysis

This vulnerability can lead to service outages or crashes in Commvault installations, including CommServe, Webserver, Command Center, MediaAgents, Clients, and HyperScale. It may cause downtime or reduced functionality.

Mitigation Strategies

Upgrade all Commvault components including CommServe, Webserver, Command Center, MediaAgents, Clients, and HyperScale to the latest resolved maintenance release as instructed by Commvault.

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