How severe is CVE-2020-23621?

CVE-2020-23621 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-23621 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-23621?

CVE-2020-23621 affects Squire-technologies Svi Ms Management System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-23621?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-23621 published?

CVE-2020-23621 was published on 2022-05-02 and last updated on 2026-06-17.

CVE-2020-23621

CVE-2020-23621 is a critical-severity vulnerability in Squire-technologies Svi Ms Management System with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Squire-technologies Svi Ms Management System
Published: 2022-05-02
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-23621?: 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.
How severe is CVE-2020-23621?: CVE-2020-23621 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-23621 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-23621?: CVE-2020-23621 affects Squire-technologies Svi Ms Management System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-23621?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-23621 published?: CVE-2020-23621 was published on 2022-05-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:squire-technologies:svi_ms_management_system:-:*:*:*:*:*:*:*

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