CVE-2021-35223

Execute Command Function Allows Remote Code Execution (RCE)Vulnerability

HIGH
8.8
CVSS Score
Published: August 31, 2021 at 04:00 PM UTC
Updated: June 17, 2026 at 03:57 AM UTC
1 product affected across 1 vendorServ-U

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Severity
HIGH8.8
Exploit prediction
EPSS 3%

Description

The Serv-U File Server allows for events such as user login failures to be audited by executing a command. This command can be supplied with parameters that can take the form of user string variables, allowing remote code execution.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 15.2.415.2.3 and previous versions ≤ v ≤ 15.2.415.2.3 and previous versions
Affected range stops below 15.2.4, so it looks safe — our inference, not a vendor statement

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20NVD-CWE-noinfo

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