Serv-U FTP Server <= 15.2.3 Hotfix 1 Memory Escape Vulnerability

critical Nessus Plugin ID 151646


The remote FTP server is affected by an Memory Escape vulnerability.


According to its banner, the installed version of Serv-U is a version prior to 15.2.3 Hotfix 2. It is, therefore, affected memory escape vulnerability. An unauthenticated remote attacker who successfully exploited this vulnerability could run arbitrary code with privileges, which could then install programs; view, change, or delete data; or run programs on the affected system.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Upgrade to ServU-FTP 15.2.3 Hotfix 2 or later.

See Also

Plugin Details

Severity: Critical

ID: 151646

File Name: servu_15_2_3_2.nasl

Version: 1.10

Type: remote

Family: FTP

Published: 7/15/2021

Updated: 12/5/2022

Configuration: Enable thorough checks

Supported Sensors: Nessus

Risk Information


Risk Factor: Critical

Score: 10.0


Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2021-35211


Risk Factor: Critical

Base Score: 10

Temporal Score: 9.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:solarwinds:serv-u_file_server

Required KB Items: installed_sw/Serv-U

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/9/2021

Vulnerability Publication Date: 7/9/2021

CISA Known Exploited Vulnerability Due Dates: 11/17/2021

Reference Information

CVE: CVE-2021-35211

IAVA: 2021-A-0322-S