CVE-2021-27656 json
exacqVision Web Services - Information Exposure
published 2021-03-18 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14402
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 71%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-21-077-01 updated cvss 5.3
Johnson Controls Exacq Technologies exacqVision
-
Exacq Technologies, Johnson Controls Inc. exacqVision Web Service <= v20.12.02.0affected: fixed in v21.03, mitigation “For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2021-03.” johnsoncontrols.com
From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf
Exploit prediction
1.34% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- Johnson Controls exacqVision Web Service version 20.12.2.0 and prior
Classification
- Weakness
-
- CWE-862 Missing Authorization
References
-
johnsoncontrols.com
/cyber-solutions/security-advisories
patch, vendor-advisory
-
us-cert.cisa.gov
/ics/advisories/icsa-21-077-01
third-party-advisory, us-government-resource
Sources
- CVE List CVE-2021-27656
- NVD CVE-2021-27656
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