How severe is CVE-2021-27658?

CVE-2021-27658 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-27658 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-27658?

CVE-2021-27658 affects Johnsoncontrols Exacqvision Enterprise Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27658?

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

When was CVE-2021-27658 published?

CVE-2021-27658 was published on 2021-06-24 and last updated on 2026-06-17.

CVE-2021-27658

CVE-2021-27658 is a medium-severity vulnerability in Johnsoncontrols Exacqvision Enterprise Manager 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 3.5
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Johnsoncontrols Exacqvision Enterprise Manager
Published: 2021-06-24
Last modified: 2026-06-17

Description

exacqVision Enterprise Manager 20.12 does not sufficiently validate, filter, escape, and/or encode user-controllable input before it is placed in output that is used as a web page that is served to other users.

Frequently asked questions

What is CVE-2021-27658?: exacqVision Enterprise Manager 20.12 does not sufficiently validate, filter, escape, and/or encode user-controllable input before it is placed in output that is used as a web page that is served to other users.
How severe is CVE-2021-27658?: CVE-2021-27658 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-27658 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-27658?: CVE-2021-27658 affects Johnsoncontrols Exacqvision Enterprise Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27658?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-27658 published?: CVE-2021-27658 was published on 2021-06-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:johnsoncontrols:exacqvision_enterprise_manager:*:*:*:*:*:*:*:*

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