Security readout for executives and security teams
Plain-English summary
OpenEMR versions 5.0.0 through 6.0.0.1 may mishandle very long passwords by not enforcing a maximum length. If an attacker knows the first 72 characters of a victim's password, the sources state this can enable account takeover.
Executive priority
Treat this as a targeted account-takeover risk for affected OpenEMR systems. Business urgency depends on whether exposed deployments exist and whether attackers could learn partial passwords.
Technical view
The vulnerability is weak password requirements in OpenEMR password handling. Affected versions do not enforce a maximum password length limit, creating an authentication weakness tied to the first 72 password characters. No CVSS, CWE, or vendor advisory details are included in the provided bundle.
Likely exposure
Exposure is limited to OpenEMR deployments running versions 5.0.0 through 6.0.0.1. Systems not using those versions are not identified as affected in the provided sources.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires knowledge of the first 72 characters of a victim user's password, according to the CVE description.
Researcher notes
Evidence is sparse: no CVSS, CWE, or exploitation telemetry is provided. The strongest technical anchor is the affected version list and referenced OpenEMR commit. Avoid expanding impact beyond account takeover under the stated password-knowledge condition.
Mitigation direction
- Identify all OpenEMR instances and their exact versions.
- Prioritize upgrade planning for versions 5.0.0 through 6.0.0.1.
- Confirm vendor guidance and releases containing the referenced fix commit.
- Review password policy controls for maximum length handling.
- Rotate passwords for high-risk accounts after remediation if exposure is plausible.
Validation and detection
- Check deployed OpenEMR version against the affected version list.
- Confirm the codebase includes the referenced OpenEMR fix commit or later vendor release.
- Review authentication configuration for password length policy enforcement.
- Audit high-privilege accounts for unusual access during the exposure window.
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.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-25923 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://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25923CVE reference · x_refsource_MISC
- https://github.com/openemr/openemr/commit/28ca5c008d4a408b60001a67dfd3e0915f9181e0CVE 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.