SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-13737

CommServe contained an allowlist bypass vulnerability affecting command execution authorization.

CRITICAL 9.2EPSS 0.52%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

CommServe contained an allowlist bypass vulnerability affecting command execution authorization. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including Commserve, Webserver, Command Center, Media Agents, Clients and HyperScale X.

CVSS 4.0
9.2 CRITICALCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS
0.52% probability · 43th percentile
CISA KEV
Not listed
Weakness
CWE-863
Affected
commvault/commvault
Source
050066fd-a2f9-4f32-ab5d-4c53f48bc333

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.