CVE-2020-15543

Name: CVE-2020-15543
Creator: NVD / NIST
Published: 2020-07-05T22:15:11.307+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.63%

Last modified Jun 17, 2026

CVE-2020-15543 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. SolarWinds Serv-U FTP server before 15.2.1 does not validate an argument path.. EPSS estimates a 1.63% chance of exploitation in the next 30 days.

Description

SolarWinds Serv-U FTP server before 15.2.1 does not validate an argument path.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.63%

73.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Solarwinds	Serv-U Ftp Server	< 15.2.1

References

https://documentation.solarwinds.com/en/success_center/servu/Content/Release_Notes/Servu_15-2-1_release_notes.htmRelease Notes, Vendor Advisory
https://documentation.solarwinds.com/en/success_center/servu/Content/Release_Notes/Servu_15-2-1_release_notes.htmRelease Notes, Vendor Advisory

Timeline

Published: Jul 5, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-15543?

SolarWinds Serv-U FTP server before 15.2.1 does not validate an argument path.

How severe is CVE-2020-15543?

CVE-2020-15543 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.63% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15543?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-15543?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST