CVE-2021-40091

Name: CVE-2021-40091
Creator: NVD / NIST
Published: 2021-12-06T21:15:07.83+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.06%

Last modified Jun 17, 2026

CVE-2021-40091 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An SSRF issue was discovered in SquaredUp for SCOM 5.2.1.6654.. EPSS estimates a 1.06% chance of exploitation in the next 30 days.

Description

An SSRF issue was discovered in SquaredUp for SCOM 5.2.1.6654.

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

1.06%

60.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Squaredup	Squaredup	< 5.3.1

References

https://support.squaredup.comVendor Advisory
https://support.squaredup.com/hc/en-us/articles/4410656394129-CVE-2021-40091-SSRF-issueVendor Advisory
https://support.squaredup.comVendor Advisory
https://support.squaredup.com/hc/en-us/articles/4410656394129-CVE-2021-40091-SSRF-issueVendor Advisory

Timeline

Published: Dec 6, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-40091?

An SSRF issue was discovered in SquaredUp for SCOM 5.2.1.6654.

How severe is CVE-2021-40091?

CVE-2021-40091 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.06% probability of exploitation in the next 30 days.

How do I fix CVE-2021-40091?

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-2021-40091?

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

Scan your code now

Source: NVD / NIST