CVE-2026-77100 - Vulnerability Details - OpenCVE

MediaAgent contained a heap-based buffer overflow issue affecting service availability. Software customers upgrade to resolved maintenance release. Update Commvault installation of MediaAgents and HyperScale.

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

No data.

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.

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_10_6.html

History

Tue, 13 Oct 2026 15:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-122
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 13 Oct 2026 14:30:00 +0000

Type	Values Removed	Values Added
Description		MediaAgent contained a heap-based buffer overflow issue affecting service availability. Software customers upgrade to resolved maintenance release. Update Commvault installation of MediaAgents and HyperScale.
Title		MediaAgent Denial of Service
References		https://documentation.commvault.com/securityadvisories/CV_2026_10_6.html
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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MITRE

Status: PUBLISHED

Assigner: Commvault

Published: 2026-10-13T14:27:01.168Z

Updated: 2026-10-13T14:41:29.578Z

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

Link: CVE-2026-77100

Vulnrichment

Updated: 2026-10-13T14:41:26.259Z

NVD

Status : Received

Published: 2026-10-13T15:17:49.650

Modified: 2026-10-13T15:17:49.650

Link: CVE-2026-77100

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-10-13T17:45:17Z

Weaknesses

CWE-122

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