CVE-2021-27659 json
exacqVision Web Service CSS
published 2021-06-24 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14405
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
exacqVision Web Service 21.03 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.
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-21-180-01 updated cvss 5.3
Exacq Technologies exacqVision Web Service
-
Exacq Technologies, Johnson Controls Inc. exacqVision Web Service <= 21.03affected: vendor fix, mitigation “For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2021-09 v1” exacq.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
1.22% chance of exploitation in the next 30 days, higher than 68% 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:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- Johnson Controls exacqVision Web Service
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
johnsoncontrols.com
/cyber-solutions/security-advisories
vendor-advisory
-
us-cert.gov
/ics/advisories
third-party-advisory, us-government-resource
-
us-cert.cisa.gov
/ics/advisories/icsa-21-180-01
third-party-advisory, us-government-resource
Sources
- CVE List CVE-2021-27659
- NVD CVE-2021-27659
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.