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CVE-2021-40375

23
FAUCET Score

CVE-2021-40375 affects Apperta Foundation OpenEyes 3.5.1, allowing authenticated remote attackers to view sensitive patient information without proper authorization. Despite a "Forbidden" error, patient profiles, including PII and medication history, are still present in the server response, accessible via intercepting proxies or page source. This medium-severity vulnerability (CVSS 6.5) has a low attack complexity and high confidentiality impact, but no integrity or availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.5.1CPE matchmatch criteria
cpe:2.3:a:apperta:openeyes:3.5.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.62%
Probability of exploitation in next 30 days
EPSS Percentile
73.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0162 is in the 87th percentile among its peer group of 21,951 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / DCKento/CVE-2021-40375
ExploitThird Party Advisory
openeyes.apperta.org
ProductVendor Advisory