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Description

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.

PUBLISHED Reserved 2026-04-04 | Published 2026-04-04 | Updated 2026-04-06 | Assigner VulDB




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:W/RC:R
MEDIUM: 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:W/RC:R
5.0AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:W/RC:UR

Problem types

Use of Hard-coded Cryptographic Key

Key Management Error

Product status

1.0
affected

1.0re
affected

01.bin
affected

04.03.01.53
affected

Timeline

2026-04-04:Advisory disclosed
2026-04-04:VulDB entry created
2026-04-04:VulDB entry last update

Credits

CoreNode (VulDB User) reporter

VulDB Vulnerability Moderation Team coordinator

References

vuldb.com/vuln/355280 (VDB-355280 | Tenda 4G03 Pro ECDSA P-256 Private Key server.key hard-coded key) vdb-entry

vuldb.com/vuln/355280/cti (VDB-355280 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/submit/782053 (Submit #782053 | Tenda 4G03 Pro V1.0 V04.03.01.53 Cryptographic Issues) third-party-advisory

www.tenda.com.cn/ product

cve.org (CVE-2026-5527)

nvd.nist.gov (CVE-2026-5527)

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