CVE-2020-23621

Name: CVE-2020-23621
Creator: NVD / NIST
Published: 2022-05-02T23:15:07.673+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.90%

Last modified Jun 17, 2026

CVE-2020-23621 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The Java Remote Management Interface of all versions of SVI MS Management System was discovered to contain a vulnerability due to insecure deserialization of user-supplied content, which can allow attackers to execute arbitrary code via a crafted serialized Java object.. EPSS estimates a 1.90% chance of exploitation in the next 30 days.

Description

The Java Remote Management Interface of all versions of SVI MS Management System was discovered to contain a vulnerability due to insecure deserialization of user-supplied content, which can allow attackers to execute arbitrary code via a crafted serialized Java object.

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

1.90%

77.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Squire-Technologies	Svi Ms Management System	All versions

References

https://gist.github.com/fuzzKitty/dd1c6fac4f36e70ea64814732726aaeaThird Party Advisory
https://github.com/joaomatosf/jexbossThird Party Advisory
https://www.squire-technologies.co.uk/Vendor Advisory
https://gist.github.com/fuzzKitty/dd1c6fac4f36e70ea64814732726aaeaThird Party Advisory
https://github.com/joaomatosf/jexbossThird Party Advisory
https://www.squire-technologies.co.uk/Vendor Advisory

Timeline

Published: May 2, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-23621?

How severe is CVE-2020-23621?

CVE-2020-23621 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.90% probability of exploitation in the next 30 days.

How do I fix CVE-2020-23621?

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-2020-23621?

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

Scan your code now

Source: NVD / NIST