CVE-2021-35215

Name: CVE-2021-35215
Creator: NVD / NIST
Published: 2021-09-01T15:15:08.797+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 69.24%

Last modified Jun 17, 2026

CVE-2021-35215 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Insecure deserialization leading to Remote Code Execution was detected in the Orion Platform version 2020.2.5. Authentication is required to exploit this vulnerability.. EPSS estimates a 69.24% chance of exploitation in the next 30 days.

Description

Insecure deserialization leading to Remote Code Execution was detected in the Orion Platform version 2020.2.5. Authentication is required to exploit this 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

69.24%

99.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Solarwinds	Orion Platform	<= 2020.2.5

References

https://documentation.solarwinds.co/enm/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htmBroken Link
https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htmProduct, Vendor Advisory
https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35215Patch, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1245/Third Party Advisory, VDB Entry
https://documentation.solarwinds.co/enm/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htmBroken Link
https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htmProduct, Vendor Advisory
https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35215Patch, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1245/Third Party Advisory, VDB Entry

Timeline

Published: Sep 1, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-35215?

Insecure deserialization leading to Remote Code Execution was detected in the Orion Platform version 2020.2.5. Authentication is required to exploit this vulnerability.

How severe is CVE-2021-35215?

CVE-2021-35215 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 69.24% probability of exploitation in the next 30 days.

How do I fix CVE-2021-35215?

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-2021-35215?

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

Scan your code now

Source: NVD / NIST