CVE-2021-35213

Name: CVE-2021-35213
Creator: NVD / NIST
Published: 2021-08-31T16:15:07.687+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 3.37%

Last modified Jun 17, 2026

CVE-2021-35213 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An Improper Access Control Privilege Escalation Vulnerability was discovered in the User Setting of Orion Platform version 2020.2.5. It allows a guest user to elevate privileges to the Administrator using this vulnerability. EPSS estimates a 3.37% chance of exploitation in the next 30 days.

Description

An Improper Access Control Privilege Escalation Vulnerability was discovered in the User Setting of Orion Platform version 2020.2.5. It allows a guest user to elevate privileges to the Administrator using this vulnerability. Authentication is required to exploit the vulnerability.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

3.37%

87.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Solarwinds	Orion Platform	<= 2020.2.5

References

https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htmVendor Advisory
https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htmRelease Notes, Vendor Advisory
https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35213Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1244/Third Party Advisory, VDB Entry
https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htmVendor Advisory
https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htmRelease Notes, Vendor Advisory
https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35213Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1244/Third Party Advisory, VDB Entry

Timeline

Published: Aug 31, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-35213?

How severe is CVE-2021-35213?

CVE-2021-35213 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 3.37% probability of exploitation in the next 30 days.

How do I fix CVE-2021-35213?

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-2021-35213?

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

Scan your code now

Source: NVD / NIST