Cyber Resilience

CVE-2026-6265

HighPublic PoC

Published: 27 April 2026

Published
27 April 2026
Modified
07 May 2026
KEV Added
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Patch
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CVSS Score v4 7.3 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
EPSS Score 0.0026 17.2th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-6265 is a high-severity Insecure Preserved Inherited Permissions (CWE-278) vulnerability in Cerberusftp Ftp Server. Its CVSS base score is 7.3 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Services File Permissions Weakness (T1574.010); ranked at the 17.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

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

CWE(s)
CWE-278

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1574.010 Services File Permissions Weakness Stealth
Adversaries may execute their own malicious payloads by hijacking the binaries used by services.
attack.mitre.org →
T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
Why these techniques?

Insecure inherited permissions weakness (CWE-278) directly matches T1044 and enables local privilege escalation via T1068 in the FTP server context.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0

Affected Assets

cerberusftp
ftp server
≤ 2026.1

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References