Unisoon UltraLog Express - Broken Authentication
Priority LOW 37CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
UltraLog Express device management interface does not properly perform access authentication in some specific pages/functions. Any user can access the privileged page to manage accounts through specific system directory.
Why it matters now
EPSS 0.00836 57th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unisoon | UltraLog Express | 1.4.0 | — | No fix listed | CNA |
- UltraLog Express VendorUnisoon Affected 1.4.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-3920
- 2026-10-03 Alias added: GHSA-3c6v-c67v-hx4q
References
More Unisoon Ultralog Express Firmware vulnerabilities
- TI-2020-03421 Unisoon UltraLog Express - Sensitive Data Exposure CVSS 3.1HIGH 8.6
- TI-2020-03436 Unisoon UltraLog Express - SQL Injection CVSS 3.1CRITICAL 10.0
Sources
- CVE-2020-3920 · CVE Program
- CVE-2020-3920 · NVD
- FIRST EPSS
- GHSA-3c6v-c67v-hx4q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences