CVE-2021-27656
Johnson Controls
- Published
- 18 March 2021
- Last modified
- 17 June 2026
- CVSS
- 7.5 v3.1
- Severity
- high
- EPSS
- 1.2% (66th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-862
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
A vulnerability in exacqVision Web Service 20.12.2.0 and prior could allow an unauthenticated attacker to view system-level information about the exacqVision Web Service and the operating system.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 1.2% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| Exacqvision Web Service | Johnson Controls | Video management software | <= 20.06.11.0, <= 20.06.3.0, <= 20.12.2.0, <= 21.03 +1 |
References
Vendor advisory and patch
- https://www.johnsoncontrols.com/cyber-solutions/security-advisories
- https://www.johnsoncontrols.com/cyber-solutions/security-advisories
- https://us-cert.cisa.gov/ics/advisories/icsa-21-077-01 third-party
- https://us-cert.cisa.gov/ics/advisories/icsa-21-077-01 third-party
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.