CVE-2026-6265: Insecure preserved inherited permissions vulnerability in Cerberus FTP Server on Windows allows Privilege Esca

Q: How do I fix CVE-2026-6265?

ftp server: upgrade to 2026.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-6265 being exploited?

CVE-2026-6265 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-6265 affect?

CVE-2026-6265 affects ftp server. Severity is high (CVSS 8.8). 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

Q: How urgent is CVE-2026-6265?

Priority 40/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2026-6265 is a high-severity flaw (CVSS 8.8) affecting ftp server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-278
Published	2026-04-27
Last modified	2026-10-26

Publisher (CNA): National Cyber Security Centre Finland · Vendor: cerberusftp

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-27 14:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

cerberusftp ftp server UPGRADE

Affected: < 2026.1

Fixed in: 2026.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ftp-server || rpm -q ftp-server || ftp-server --version

2. UPGRADE to 2026.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ftp-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ftp-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-6265?

ftp server: upgrade to 2026.1. Exact commands for each OS are on this page.

Is CVE-2026-6265 being exploited?

CVE-2026-6265 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-6265 affect?

CVE-2026-6265 affects ftp server. Severity is high (CVSS 8.8). 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

How urgent is CVE-2026-6265?

Priority 40/100. High severity; Public exploit reference

Software pages

Windows vulnerabilities

References

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