CVE-2026-77100

{"id": "CVE-2026-77100", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-77100", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-13T14:41:16.105259Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "050066fd-a2f9-4f32-ab5d-4c53f48bc333", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "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/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "050066fd-a2f9-4f32-ab5d-4c53f48bc333", "affectedData": [{"vendor": "Commvault", "product": "Commvault Cloud", "versions": [{"status": "affected", "changes": [{"at": "11.46.30", "status": "unaffected"}], "version": "11.46.0", "versionType": "custom", "lessThanOrEqual": "11.46.29"}, {"status": "affected", "changes": [{"at": "11.44.25", "status": "unaffected"}], "version": "11.44.0", "versionType": "custom", "lessThanOrEqual": "11.44.24"}, {"status": "affected", "changes": [{"at": "11.40.78", "status": "unaffected"}], "version": "11.40.0", "versionType": "custom", "lessThanOrEqual": "11.40.77"}, {"status": "affected", "changes": [{"at": "11.36.127", "status": "unaffected"}], "version": "11.36.0", "versionType": "custom", "lessThanOrEqual": "11.36.126"}], "platforms": ["Windows", "Linux"], "defaultStatus": "unknown"}]}], "published": "2026-10-13T15:17:49.650", "references": [{"url": "https://documentation.commvault.com/securityadvisories/CV_2026_10_6.html", "source": "050066fd-a2f9-4f32-ab5d-4c53f48bc333"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-122"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-10-14T16:04:11.750", "sourceIdentifier": "050066fd-a2f9-4f32-ab5d-4c53f48bc333"}