All vulnerabilities
CVE-2026-77100

Commvault Cloud: MediaAgent Denial of Service

Commvault Commvault Cloud
Open in ThreatlineRecord JSON
CVSS
8.7High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.32%Chance of exploitation activity in the next 30 days, higher than 23% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published13 Oct 2026Updated 13 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 4

  • Commvault Cloudaffected: 11.46.0 through 11.46.29CVE List
  • Commvault Cloudaffected: 11.44.0 through 11.44.24CVE List
  • Commvault Cloudaffected: 11.40.0 through 11.40.77CVE List
  • Commvault Cloudaffected: 11.36.0 through 11.36.126CVE List

References 1