Local Privilege Escalation in Cerberus FTP Server =< 2025.4.2
Summary
| CVE | CVE-2026-6265 |
|---|---|
| State | PUBLISHED |
| Assigner | NCSC-FI |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-04-27 14:16:51 UTC |
| Updated | 2026-05-07 02:18:35 UTC |
| Description | 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 |
Risk And Classification
Primary CVSS: v4.0 7.3 HIGH from db4dfee8-a97e-4877-bfae-eba6d14a2166
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
Problem Types: CWE-278 | CWE-278 CWE-278 Insecure preserved inherited permissions
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | db4dfee8-a97e-4877-bfae-eba6d14a2166 | Secondary | 7.3 | HIGH | 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/C... |
| 4.0 | CNA | CVSS | 7.3 | HIGH | 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 |
| 3.1 | [email protected] | Primary | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
CVSS v4.0 Breakdown
Attack Vector
LocalAttack Complexity
LowAttack Requirements
PresentPrivileges Required
LowUser Interaction
PassiveConfidentiality
HighIntegrity
HighAvailability
HighSub Conf.
HighSub Integrity
HighSub Availability
HighCVSS: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
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Cerberusftp | Ftp Server | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Cerberus | Cerberus FTP Server | affected 2025.4.2 custom | Windows |
| CNA | Cerberus | Cerberus FTP Server | unaffected 2026.1 | Windows |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | labs.reversec.com | Vendor Advisory, Exploit |
| www.cerberusftp.com/releasenotes | db4dfee8-a97e-4877-bfae-eba6d14a2166 | www.cerberusftp.com | Release Notes |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Sharan Patil with Reversec (en)
There are currently no legacy QID mappings associated with this CVE.