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CVE-2026-77095

Status: ReceivedHigh (7.1)—

CvFWD contained a null pointer dereference affecting service availability. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including CommServe, Webserver, Command Center, MediaAgents, Clients and HyperScale.

CVSS

Exploitation probability (EPSS)

FIRST hasn't scored this CVE yet (usual for very recent or rejected CVEs).

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

El vector CVSS indica red con privilegios bajos (PR:L) y alto impacto en disponibilidad (VA:H); la descripción señala una desreferencia de puntero nulo que afecta la disponibilidad del servicio.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Vulnerability ScanningThreat Intelligence ProgramPrivileged Account ManagementNetwork SegmentationFilter Network TrafficDisable or Remove Feature or Program

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Commvault — Commvault PlatformAI

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-77095",
  "cveTags": [],
  "metrics": {
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "050066fd-a2f9-4f32-ab5d-4c53f48bc333",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 7.1,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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": "LOW",
          "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": "2026-10-13T15:17:49.273",
  "references": [
    {
      "url": "https://documentation.commvault.com/securityadvisories/CV_2026_10_5.html",
      "source": "050066fd-a2f9-4f32-ab5d-4c53f48bc333"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "CvFWD contained a null pointer dereference affecting service availability.  Software customers upgrade to resolved maintenance release. Update all Commvault installations, including CommServe, Webserver, Command Center, MediaAgents, Clients and HyperScale."
    }
  ],
  "lastModified": "2026-10-13T15:17:49.273",
  "sourceIdentifier": "050066fd-a2f9-4f32-ab5d-4c53f48bc333"
}