CVE-2026-77100CWE-122

CVE-2026-77100

published October 13, 2026

CVSS
8.7
EPSS
0%
Percentile
23.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
8.7 · NONE
CVSS v4.0
8.7 · 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
EPSS
0.00316 · 23.3th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-10-13T19:17Z
References (1)
https://documentation.commvault.com/securityadvisories/CV_2026_10_6.html · 050066fd-a2f9-4f32-ab5d-4c53f48bc333
EPSS history
Timeline
  • 15 OCT 03:34Z
    EPSS moved — → 0%
    epss
  • 13 OCT 14:27Z
    MediaAgent Denial of Service
    cvelistv5
  • 13 OCT 14:27Z
    MediaAgent Denial of Service
    cvelistv5