CVE-2026-97334

EUVD-2026-98764
The network messaging layer contained improper handling of highly compressed data affecting service availability.  Software customers upgrade to resolved maintenance release. Update all Commvault installations, including CommServe server, Web Server, Command Center, MediaAgents, clients, and HyperScale.
Data Amplification
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
CommvaultCNA
8.7 HIGH
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
Base Score
CVSS 3.x
EPSS Score
Percentile: 27.59%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
commvaultcommvault
11.46.0 ≤
𝑥
≤ 11.46.29
CNA
commvaultcommvault
11.44.0 ≤
𝑥
≤ 11.44.24
CNA
commvaultcommvault
11.40.0 ≤
𝑥
≤ 11.40.77
CNA
commvaultcommvault
11.36.0 ≤
𝑥
≤ 11.36.126
CNA
Common Weakness Enumeration
References
https://documentation.commvault.com/securityadvisories/CV_2026_10_3.html