EUVD-2026-72724
GHSA-hrh7-2rfh-v898
Severity by source
CVSS:4.0/AV:L/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
Local vector, high complexity with specific prerequisites, low privileges required; no scope change as subsequent-system impact metrics are all None in the 4.0 vector.
Primary rating from Vendor (Commvault).
CVSS VectorVendor: Commvault
Lifecycle Timeline
2DescriptionCVE.org
Content Extractor contained a deserialization of untrusted data issue affecting privilege management. Software customers upgrade to resolved maintenance release. Update Content Extractor.
AnalysisAI
Deserialization of untrusted data in Commvault Cloud's Content Extractor component enables privilege escalation, producing high impact across confidentiality, integrity, and availability of affected systems. The flaw targets the privilege management subsystem and requires local access with low-level credentials under specific environmental conditions (CVSS 4.0 AV:L/AC:H/AT:P/PR:L). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Local system access is required (AV:L); remote unauthenticated exploitation is not possible. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 7.3 reflects a meaningfully constrained threat profile compared to typical deserialization findings: local attack vector (AV:L), high attack complexity (AC:H), and the presence of specific attack prerequisites (AT:P) sharply limit opportunistic exploitation. … 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 instructs software customers to upgrade to the resolved maintenance release that addresses the Content Extractor deserialization flaw. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Commvault Cloud deployments and assess whether local users with low-level credentials have access to the Content Extractor component. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
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Same weakness CWE-502 – Deserialization of Untrusted Data
View allSame technique Deserialization
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External POC / Exploit Code
Leaving vuln.today