How severe is CVE-2021-36201?

CVE-2021-36201 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-36201 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36201?

CVE-2021-36201 affects Johnsoncontrols C-cure 9000 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36201?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-36201 published?

CVE-2021-36201 was published on 2022-10-11 and last updated on 2026-06-17.

CVE-2021-36201

CVE-2021-36201 is a medium-severity vulnerability in Johnsoncontrols C-cure 9000 Firmware with a CVSS 3.x base score of 4.3. 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-203.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Johnsoncontrols C-cure 9000 Firmware
Published: 2022-10-11
Last modified: 2026-06-17

Description

Under certain circumstances a CCURE Portal user could enumerate user accounts in CCURE 9000 version 2.90 and prior versions.

Frequently asked questions

What is CVE-2021-36201?: Under certain circumstances a CCURE Portal user could enumerate user accounts in CCURE 9000 version 2.90 and prior versions.
How severe is CVE-2021-36201?: CVE-2021-36201 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-36201 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36201?: CVE-2021-36201 affects Johnsoncontrols C-cure 9000 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36201?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36201 published?: CVE-2021-36201 was published on 2022-10-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:johnsoncontrols:c-cure_9000_firmware:*:*:*:*:*:*:*:*

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