How severe is CVE-2022-21939?

CVE-2022-21939 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-21939 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-21939?

CVE-2022-21939 affects Johnsoncontrols Metasys System Configuration Tool. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-21939?

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

When was CVE-2022-21939 published?

CVE-2022-21939 was published on 2023-02-09 and last updated on 2026-06-17.

CVE-2022-21939

CVE-2022-21939 is a high-severity vulnerability in Johnsoncontrols Metasys System Configuration Tool with a CVSS 3.x base score of 7.5. 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Johnsoncontrols Metasys System Configuration Tool
Published: 2023-02-09
Last modified: 2026-06-17

Description

Sensitive Cookie Without 'HttpOnly' Flag vulnerability in Johnson Controls System Configuration Tool (SCT) version 14 prior to 14.2.3 and version 15 prior to 15.0.3 could allow access to the cookie.

Frequently asked questions

What is CVE-2022-21939?: Sensitive Cookie Without 'HttpOnly' Flag vulnerability in Johnson Controls System Configuration Tool (SCT) version 14 prior to 14.2.3 and version 15 prior to 15.0.3 could allow access to the cookie.
How severe is CVE-2022-21939?: CVE-2022-21939 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-21939 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-21939?: CVE-2022-21939 affects Johnsoncontrols Metasys System Configuration Tool. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-21939?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-21939 published?: CVE-2022-21939 was published on 2023-02-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:johnsoncontrols:metasys_system_configuration_tool:*:*:*:*:*:*:*:*

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