CVE-2026-6265

HIGH

Published Apr 27, 2026 Modified May 7, 2026 CWE-278

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

Is your site exposed to CVE-2026-6265?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0003

Probability of exploitation

0.08%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-278 CWE-278

Affected Products

Vendor	Product	Versions
cerberusftp	ftp_server	< 2026.1

References

Advisories & Patches

https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges

Exploits

https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges https://labs.reversec.com/advisories/2026/04/cerberus-ftp-server-elevation-of-privileges

Other References

https://www.cerberusftp.com/releasenotes/

Frequently Asked Questions

What is 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 It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-6265? +

CVE-2026-6265 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0003, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-6265? +

CVE-2026-6265 affects products from cerberusftp, specifically: ftp_server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-6265? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.