EUVD-2026-72732
GHSA-4696-w4qw-8g7f
Severity by source
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable but high complexity with specific pre-conditions; low-privileged auth required; full system CIA impact with no scope change.
Primary rating from Vendor (Commvault).
CVSS VectorVendor: Commvault
Lifecycle Timeline
3DescriptionCVE.org
Cvlaunchd contained a missing authorization issue 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.
AnalysisAI
Missing authorization in the cvlaunchd daemon of Commvault Cloud allows low-privileged authenticated users to bypass command execution authorization controls, potentially achieving full system compromise across confidentiality, integrity, and availability dimensions. All major Commvault installation components are affected - Commserve, Webserver, Command Center, Media Agents, Clients, and HyperScale X - across four version branches (11.36, 11.40, 11.44, 11.46). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated low-privileged account within the Commvault environment (PR:L per CVSS 4.0 vector). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:H/AT:P/PR:L/UI:N) characterizes this as a network-reachable flaw requiring prior authentication and specific pre-conditions (AT:P), with a resulting score of 7.7 - meaningful but not the highest tier. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Commvault recommends upgrading all installations to the resolved maintenance releases for the affected version branches; exact fixed build numbers should be obtained from the vendor advisory at https://documentation.commvault.com/securityadvisories/CV_2026_08_8.html, as the advisory text references 'resolved maintenance release' without specifying exact version numbers in the data available here. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all Commvault systems running versions 11.36, 11.40, 11.44, or 11.46 and immediately restrict low-privileged user access to affected components (Commserve, Webserver, Command Center, Media Agents, Clients, HyperScale X). …
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today