Tenda 4G03 Pro ECDSA P-256 Private Key server.key hard-coded key
Priority LOW 37CWE-320Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-321.
Summary
A weakness has been identified in Tenda 4G03 Pro 1.0/1.0re/01.bin/04.03.01.53. Affected by this issue is some unknown functionality of the file /etc/www/pem/server.key of the component ECDSA P-256 Private Key Handler. This manipulation causes use of hard-coded cryptographic key . It is possible to initiate the attack remotely.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00443 38th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tenda | 4G03 Pro | 1.0; 1.0re; 01.bin; 04.03.01.53 | — | No fix listed | CNA |
- 4G03 Pro VendorTenda Affected 1.0; 1.0re; 01.bin; 04.03.01.53 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-5527
- 2026-10-03 Alias added: GHSA-pgjq-fxv2-9p7v
References
Other 1
More Tenda 4g03 Pro Firmware vulnerabilities
- TI-2026-04837 Tenda 4G03 Pro httpd access control CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-5527 · CVE Program
- CVE-2026-5527 · NVD
- FIRST EPSS
- GHSA-pgjq-fxv2-9p7v · 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