CVE-2021-31531

Name: CVE-2021-31531
Creator: NVD / NIST
Published: 2021-06-29T14:15:08.457+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.44%

Last modified Jun 17, 2026

CVE-2021-31531 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Zoho ManageEngine ServiceDesk Plus MSP before 10521 is vulnerable to Server-Side Request Forgery (SSRF).. EPSS estimates a 2.44% chance of exploitation in the next 30 days.

Description

Zoho ManageEngine ServiceDesk Plus MSP before 10521 is vulnerable to Server-Side Request Forgery (SSRF).

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

2.44%

82.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Zohocorp	Manageengine Servicedesk Plus Msp	< 10.5
Zohocorp	Manageengine Servicedesk Plus Msp	10.5

References

https://cds.thalesgroup.com/en/tcs-cert/CVE-2021-31531
https://excellium-services.com/cert-xlm-advisory/cve-2021-31531/Broken Link
https://www.manageengine.com/products/service-desk-msp/readme.html#10521Release Notes, Vendor Advisory
https://excellium-services.com/cert-xlm-advisory/cve-2021-31531/Broken Link
https://www.manageengine.com/products/service-desk-msp/readme.html#10521Release Notes, Vendor Advisory

Timeline

Published: Jun 29, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31531?

Zoho ManageEngine ServiceDesk Plus MSP before 10521 is vulnerable to Server-Side Request Forgery (SSRF).

How severe is CVE-2021-31531?

CVE-2021-31531 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.44% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31531?

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-2021-31531?

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

Scan your code now

Source: NVD / NIST