CVE-2026-6265

Insecure preserved inherited permissions vulnerability in Cerberus FTP Server on Windows allows Privilege Escalation.This issue has been resolved in Cerberus FTP Server: 2026.1

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges	Exploit Vendor Advisory
https://www.cerberusftp.com/releasenotes/	Release Notes
https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cerberusftp:ftp_server:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-27 14:16

Updated : 2026-06-17 11:00

NVD link : CVE-2026-6265

Mitre link : CVE-2026-6265

CVE.ORG link : CVE-2026-6265

JSON object : View

Products Affected

cerberusftp

ftp_server

CWE

CWE-278

Insecure Preserved Inherited Permissions

{"id": "CVE-2026-6265", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-6265", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-04-27T13:58:10.924454Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "db4dfee8-a97e-4877-bfae-eba6d14a2166", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.3, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "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": "db4dfee8-a97e-4877-bfae-eba6d14a2166", "affectedData": [{"vendor": "Cerberus", "product": "Cerberus FTP Server", "versions": [{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "2025.4.2"}, {"status": "unaffected", "version": "2026.1"}], "platforms": ["Windows"], "defaultStatus": "unaffected"}]}], "published": "2026-04-27T14:16:51.153", "references": [{"url": "https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges", "tags": ["Exploit", "Vendor Advisory"], "source": "db4dfee8-a97e-4877-bfae-eba6d14a2166"}, {"url": "https://www.cerberusftp.com/releasenotes/", "tags": ["Release Notes"], "source": "db4dfee8-a97e-4877-bfae-eba6d14a2166"}, {"url": "https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "db4dfee8-a97e-4877-bfae-eba6d14a2166", "description": [{"lang": "en", "value": "CWE-278"}]}], "descriptions": [{"lang": "en", "value": "Insecure preserved inherited permissions vulnerability in Cerberus FTP Server on Windows allows Privilege Escalation.This issue has been resolved in Cerberus FTP Server: 2026.1"}], "lastModified": "2026-06-17T11:00:33.890", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cerberusftp:ftp_server:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CD72DC32-09DA-4CD4-BACE-23F37E297D9D", "versionEndExcluding": "2026.1"}], "operator": "OR"}]}], "sourceIdentifier": "db4dfee8-a97e-4877-bfae-eba6d14a2166"}