{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-28197", "assignerOrgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158", "state": "PUBLISHED", "assignerShortName": "ENISA", "dateReserved": "2026-02-25T14:02:29.492Z", "datePublished": "2026-09-18T11:07:19.877Z", "dateUpdated": "2026-09-18T14:31:44.840Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158", "shortName": "ENISA", "dateUpdated": "2026-09-18T11:07:19.877Z" }, "title": "Privilege Escalation via Argument Injection in NetBackup Flex OS Shell", "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-88", "description": "CWE-88 Improper neutralization of argument delimiters in a command ('argument injection')", "type": "CWE" } ] } ], "affected": [ { "vendor": "Cohesity", "product": "NetBackup Flex OS", "versions": [ { "status": "affected", "version": "0", "lessThan": "6.4", "versionType": "custom" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "An authenticated, low-privileged user with access to the NetBackup Flex \nOS management shell could supply a specially crafted input to a \nprivileged administrative command, causing it to execute arbitrary code \nwith root-level permissions. Successful exploitation grants the attacker\n unrestricted control over the Flex appliance host and all hosted \ncontainers, fully compromising confidentiality, integrity, and \navailability.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "An authenticated, low-privileged user with access to the NetBackup Flex \nOS management shell could supply a specially crafted input to a \nprivileged administrative command, causing it to execute arbitrary code \nwith root-level permissions. Successful exploitation grants the attacker\n unrestricted control over the Flex appliance host and all hosted \ncontainers, fully compromising confidentiality, integrity, and \navailability." } ] } ], "references": [ { "url": "https://www.cvcn.gov.it/cvcn/cve/CVE-2026-28197", "tags": [ "government-resource" ] }, { "url": "https://github.com/cohesity/SecAdvisory/blob/master/COH-2026-0001.md", "tags": [ "vendor-advisory" ] } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "CRITICAL", "baseScore": 9.4, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H" } }, { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV3_1": { "version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H" } } ], "workarounds": [ { "lang": "en", "value": "Restrict management shell access to authorized administrators only. No \ncompensating control fully eliminates the risk; upgrading is required.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "Restrict management shell access to authorized administrators only. No \ncompensating control fully eliminates the risk; upgrading is required." } ] } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 1.0.5" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2026-28197", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2026-09-18T14:14:31.135668Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-18T14:31:44.840Z" } } ] } }