What is CVE-2021-35223?

CVE-2021-35223 is a high-severity vulnerability in Solarwinds Serv-u, classified under Improper Input Validation. CVSS score: 8.5/10. Published 2021-08-31.

How severe is CVE-2021-35223?

High severity. CVSS v3 base score is 8.5 out of 10.

Improper input validation in Solarwinds Serv-u

CVE-2021-35223

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.108 (93.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Solarwinds Serv-u — versions 15.2.3 and previous versions

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

support.solarwinds.com/SuccessCenter/s/article/Execute-Command-Function-Allows-… (x_refsource_MISC)
documentation.solarwinds.com/en/success_center/servu/content/release_notes/serv… (x_refsource_MISC)
www.solarwinds.com/trust-center/security-advisories/cve-2021-35223 (x_refsource_MISC)

Frequently asked questions

What is CVE-2021-35223?: CVE-2021-35223 is a high-severity vulnerability in Solarwinds Serv-u, classified under Improper Input Validation. CVSS score: 8.5/10. Published 2021-08-31.
How severe is CVE-2021-35223?: High severity. CVSS v3 base score is 8.5 out of 10.