Vulnerability · Published Apr 27, 2026 · Assigned by NCSC-FI

CVE-2026-6265Local Privilege Escalation in Cerberus FTP Server =< 2025.4.2

High 7.3

In plain English

A high-severity security flaw in Cerberus FTP Server from Cerberus. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 4.0)7.3High

Exploit odds (30 days)0.3%top 82.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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

Affected products (as reported)

Vendor	Product	Versions
Cerberus	Cerberus FTP Server	0 – through 2025.4.2

Weakness: CWE-278 · Vector: 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

References

https://www.cerberusftp.com/releasenotes/ release-notes
https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges third-party-advisory