CVE-2021-27664

mediumpriority · track · 40EPSS 0.016 · 76 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.60% (76th) EPSS

CVSS 6.8 · medium

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-27

Under certain configurations an unauthenticated remote user could be given access to credentials stored in the exacqVision Server.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedexacqVision Web Servicecisa_csaf_ot
Upgrade exacqVision Web Service to Version 21.09
https://www.exacq.com/support/downloads.php
MitigationexacqVision Web Servicecisa_csaf_ot
For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2021-16 v1
https://www.johnsoncontrols.com/cyber-solutions/security-advisories

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.8–9.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.09.8criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · productsecurity@jci.comexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269USprimaryCWE-269US

affected products (4)

Products and version ranges known to be affected.

exacqVision Web Service: Version 21.06.11.0 or olderall versionscisa_csaf_otUS
Exacq Technologies, Johnson Controls Inc. exacqVision Web Service≤ 21.06.11.0cisa_csaf_otUS
Johnson Controls exacqVision Web Service≤ 21.06.11.0 ≤21.06.11.0enisa_euvdEU
johnsoncontrols exacqvision web service≤ 20.06.11.0nvdUScpe:2.3:a:johnsoncontrols:exacqvision_web_service:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-21-280-01Johnson Controls exacqVision Server Bundle2021-10-07icsa · cisa_csaf_otUS
Successful exploitation of this vulnerability could allow an unauthenticated remote user to be given access to credentials stored in the exacqVision Server.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cisa_csaf_ot nvd NVD CVE.org MITRE

published 2021-10-11modified 2026-06-17

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references (10)

External citations — patches, advisories, analysis.

scry

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