FKIE_CVE-2026-13738
Vulnerability from fkie_nvd - Published: 2026-08-11 12:17 - Updated: 2026-09-11 14:25
Severity
Summary
CommServe contained an authorization bypass vulnerability affecting a limited set of command execution operations. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including Commserve, Webserver, Command Center, Media Agents, Clients and HyperScale X.
References
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unknown",
"platforms": [
"Windows",
"Linux"
],
"product": "Commvault Cloud",
"vendor": "Commvault",
"versions": [
{
"changes": [
{
"at": "11.46.10",
"status": "unaffected"
}
],
"lessThanOrEqual": "11.46.9",
"status": "affected",
"version": "11.46.0",
"versionType": "custom"
},
{
"changes": [
{
"at": "11.44.11",
"status": "unaffected"
}
],
"lessThanOrEqual": "11.44.10",
"status": "affected",
"version": "11.44.0",
"versionType": "custom"
},
{
"changes": [
{
"at": "11.40.63",
"status": "unaffected"
}
],
"lessThanOrEqual": "11.40.62",
"status": "affected",
"version": "11.40.0",
"versionType": "custom"
},
{
"changes": [
{
"at": "11.36.114",
"status": "unaffected"
}
],
"lessThanOrEqual": "11.36.113",
"status": "affected",
"version": "11.36.0",
"versionType": "custom"
}
]
}
],
"source": "050066fd-a2f9-4f32-ab5d-4c53f48bc333"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E5FCA92D-2290-422E-87C1-BD8D658FAE62",
"versionEndExcluding": "11.36.114",
"versionStartIncluding": "11.36.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:*",
"matchCriteriaId": "451C852D-3BFD-4B09-8CFB-D8C56F09BD23",
"versionEndExcluding": "11.40.63",
"versionStartIncluding": "11.40.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E8FC89DF-5702-44CE-A1B2-CBC081F14F38",
"versionEndExcluding": "11.44.11",
"versionStartIncluding": "11.44.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:commvault:commvault:*:*:*:*:*:*:*:*",
"matchCriteriaId": "7519E3A2-0575-43B2-AA81-C6171750B8BC",
"versionEndExcluding": "11.46.10",
"versionStartIncluding": "11.46.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "CommServe contained an authorization bypass vulnerability affecting a limited set of command execution operations. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including Commserve, Webserver, Command Center, Media Agents, Clients and HyperScale X."
}
],
"id": "CVE-2026-13738",
"lastModified": "2026-09-11T14:25:13.003",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": [
{
"cvssData": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 9.2,
"baseSeverity": "CRITICAL",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "050066fd-a2f9-4f32-ab5d-4c53f48bc333",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-13738",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-11T16:48:09.726861Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-08-11T12:17:37.923",
"references": [
{
"source": "050066fd-a2f9-4f32-ab5d-4c53f48bc333",
"tags": [
"Vendor Advisory"
],
"url": "https://documentation.commvault.com/securityadvisories/CV_2026_07_9.html"
}
],
"sourceIdentifier": "050066fd-a2f9-4f32-ab5d-4c53f48bc333",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-863"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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