CVE-2026-5527
MEDIUMTenda 4G03 Pro ECDSA P-256 Private Key server.key hard-coded key
Title source: cnaDescription
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.
References (4)
Core 4
Core References
Vdb Entry vdb-entry
VDB-355280 | Tenda 4G03 Pro ECDSA P-256 Private Key server.key hard-coded key
https://vuldb.com/vuln/355280
Signature, Permissions Required signature
permissions-required
VDB-355280 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/355280/cti
Third Party Advisory third-party-advisory
Submit #782053 | Tenda 4G03 Pro V1.0 V04.03.01.53 Cryptographic Issues
https://vuldb.com/submit/782053
Product product
https://www.tenda.com.cn/
Scores
CVSS v3
5.3
EPSS
0.0043
EPSS Percentile
34.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-320
CWE-321
Status
published
Products (5)
Tenda/4G03 Pro
01.bin
Tenda/4G03 Pro
04.03.01.53
Tenda/4G03 Pro
1.0
Tenda/4G03 Pro
1.0re
tenda/4g03_pro_firmware
04.03.01.53
Published
Apr 05, 2026
Tracked Since
Apr 05, 2026