Security readout for executives and security teams
Plain-English summary
This is a critical issue in Johnson Controls exacqVision Web Service where, under certain configurations, someone remote and unauthenticated could gain access to credentials stored in the exacqVision Server. For organizations using this video security platform, the business risk is credential exposure that could enable broader compromise.
Executive priority
Prioritize this as critical for any organization running exacqVision Web Service 21.06.11.0. Credential exposure can turn a product issue into wider operational and security compromise, particularly in physical security environments.
Technical view
CVE-2021-27664 affects exacqVision Web Service version 21.06.11.0. It is mapped to CWE-269 and scored CVSS 3.1 9.8 with network access, low complexity, no privileges, and no user interaction. The provided sources do not describe exact vulnerable configurations or a specific fixed version.
Likely exposure
Exposure is most likely where exacqVision Web Service 21.06.11.0 is deployed and reachable over a network, especially if accessible beyond tightly controlled management networks. The source bundle says exploitation depends on certain configurations but does not define them.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. However, the CVSS vector indicates unauthenticated remote attack potential with high confidentiality, integrity, and availability impact, so reachable deployments should be treated as urgent until validated.
Researcher notes
Key unknowns are the exact configuration preconditions, vulnerable code path, and official fixed version. Analysis should stay anchored to Johnson Controls and CISA advisory text, inventory evidence, service reachability, and credential exposure impact without assuming exploit activity.
Mitigation direction
- Identify all exacqVision Web Service deployments and versions.
- Consult Johnson Controls and CISA ICS guidance for official remediation.
- Restrict web service access to trusted networks while assessing exposure.
- Review stored credentials and rotate them if compromise cannot be excluded.
Validation and detection
- Confirm whether version 21.06.11.0 is present in the environment.
- Determine whether the web service is reachable from untrusted networks.
- Check configurations against Johnson Controls and CISA advisory details.
- Review logs for unexpected unauthenticated access around affected services.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-269: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-27664 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.johnsoncontrols.com/cyber-solutions/security-advisoriesCVE reference · x_refsource_CONFIRM
- ICS-CERT AdvisoryCVE reference · third-party-advisory, x_refsource_CERT
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Privilege Management
Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.