Vulnerability in Welotec Eg400mk2-D11001-000101
CVE-2025-41702
The JWT secret key is embedded in the egOS WebGUI backend and is readable to the default user. An unauthenticated remote attacker can generate valid HS256 tokens and bypass authentication/authorization due to the use of hard-coded cryptographic key.
EPSS: 0.005 (41.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Welotec Eg400mk2-d11001-000101 — versions 0.0.0, v1.8.0
- Welotec Eg400mk2-d11101-000101 — versions 0.0.0, v1.8.0
- Welotec Eg500mk2-a11001-000101 — versions 0.0.0, v1.8.0
- Welotec Eg500mk2-a11001-000201 — versions 0.0.0, v1.8.0
- Welotec Eg500mk2-a11101-000101 — versions 0.0.0, v1.8.0
- Welotec Eg500mk2-a12011-000101 — versions 0.0.0, v1.8.0
- Welotec Eg500mk2-a21101-000101 — versions 0.0.0, v1.8.0
- Welotec Eg500mk2-b11001-000101 — versions 0.0.0, v1.8.0
- Welotec Eg500mk2-b11101-000101 — versions 0.0.0, v1.8.0
- Welotec Eg500mk2-c11001-000101 — versions 0.0.0, v1.8.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-41702?
- CVE-2025-41702 is a critical-severity vulnerability in Welotec Eg400mk2-D11001-000101, classified under Use of Hard-coded Cryptographic Key. CVSS score: 9.8/10. Published 2025-08-26.
- How severe is CVE-2025-41702?
- Critical severity. CVSS v3 base score is 9.8 out of 10.