Security readout for executives and security teams
Plain-English summary
OpenEyes 3.5.1 could expose patient details to users who should be blocked. The page may show a Forbidden error, but the server response can still contain patient profile data, including PII and medication history. For a healthcare system, this is a serious confidentiality and regulatory exposure issue.
Executive priority
Prioritize quickly if OpenEyes 3.5.1 supports real patient workflows. The business impact is patient data disclosure, not system takeover, but PHI exposure can trigger legal, regulatory, and trust consequences. If version 3.5.1 is not present, priority drops substantially.
Technical view
The vulnerability is an access-control failure with incomplete response handling: unauthorized patient profile requests can receive a Forbidden indication while sensitive profile content remains in the response body. Sources identify OpenEyes 3.5.1 and describe exposure through response inspection, but do not provide CVSS, CWE, patch status, or broader affected-version data.
Likely exposure
Likely exposure is limited to Apperta Foundation OpenEyes 3.5.1 deployments based on the provided sources. Other versions are not confirmed. Risk is highest where OpenEyes is reachable by many authenticated users, exposed over remote access paths, or used for live patient records.
Exploitation context
The CVE describes remote attackers viewing patient information without intended privilege. CISA KEV is false in the bundle, and no cited source confirms active exploitation. Public reference material exists, but this assessment avoids exploit procedure details.
Researcher notes
Evidence is sparse: the CVE text names OpenEyes 3.5.1 and describes sensitive response-body disclosure despite Forbidden messaging. No CVSS, CWE, confirmed patch, or affected-version range is provided. Validate defensively and rely on vendor/project guidance for remediation specifics.
Mitigation direction
- Check vendor and OpenEyes project guidance for fixed versions or advisories.
- Inventory OpenEyes deployments and confirm whether version 3.5.1 is present.
- Limit OpenEyes access to trusted networks and required clinical users.
- Review role-based access controls for patient profile visibility.
- Monitor for unusual patient profile access or repeated Forbidden responses.
- Treat exposed patient data as a potential privacy incident if confirmed.
Validation and detection
- Confirm the deployed OpenEyes version and any vendor-applied security updates.
- Test in an authorized staging environment using least-privileged user roles.
- Verify Forbidden patient profile responses do not include sensitive body content.
- Review web server and application logs for unauthorized profile access attempts.
- Document whether PII or medication history could be exposed.
- Retest after any vendor update or access-control change.
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.
CVE-2021-40375 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://openeyes.apperta.org/CVE reference · x_refsource_MISC
- https://github.com/DCKento/CVE-2021-40375CVE reference · x_refsource_MISC
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.