Is CVE-2026-33302 actively exploited?

No active exploitation of CVE-2026-33302 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-33302 be exploited remotely?

Yes. CVE-2026-33302 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-33302?

CVE-2026-33302 has a CVSS score of 8.1 (HIGH).

HOME VULNERABILITIESCVE-2026-33302

HIGH

CVE-2026-33302

CWE-863Published: March 19, 2026· Updated: Mar 20, 2026

8.1

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:11.3th

Official Description

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.0.0.2, the module ACL function `AclMain::zhAclCheck()` only checks for the presence of any "allow" (user or group). It never checks for explicit "deny" (allowed=0). As a result, administrators cannot revoke access by setting a user or group to "deny"; if the user is in a group that has "allow," access is granted regardless of explicit denies. Version 8.0.0.2 fixes the issue.

NVD Source

Technical Analysis

CVE-2026-33302 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.1.