CVE-2026-82819 PUBLISHED

Universal Naming Convention (UNC) Path Injection in Cerberus FTP Server

Assigner: NCSC-FI
Reserved: 31.08.2026 Published: 21.10.2026 Updated: 21.10.2026

A vulnerability in Cerberus FTP Server allows an authenticated remote attacker to perform UNC path injection via a manipulated parameter. By supplying a malicious SMB share path, an attacker can execute authentication coercion against the underlying server, resulting in the leakage of the Cerberus service account's Net-NTLMv2 hash. This issue has been resolved in Cerberus FTP Server: 2026.3.0.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Cerberus
Product	Cerberus FTP Server
Versions	Default: unaffected affected from 0 to 2026.3.0 (excl.)

CVE-2026-82819 PUBLISHED

Universal Naming Convention (UNC) Path Injection in Cerberus FTP Server

Metrics

Product Status

References

Problem Types

Impacts