PT-2026-30386 · Tenda · Tenda 4G03 Pro

Corenode · Published 2026-04-04 · Updated 2026-04-05 · CVE-2026-5527

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Tenda 4G03 Pro versions 1.0/1.0re/01.bin/04.03.01.53

Description A weakness exists due to the use of a hard-coded cryptographic key within the ECDSA P-256 Private Key Handler functionality associated with the file /etc/www/pem/server.key. This issue can be exploited remotely.

Recommendations Update to a newer version that addresses this issue. As a temporary workaround, restrict access to the /etc/www/pem/server.key file to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-321

CWE-320

Related Identifiers

CVE-2026-5527

Affected Products

Tenda 4G03 Pro

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-5527 · Security Note
• https://vuldb.com/vuln/355280 · Note
• https://twitter.com/CVEnew/status/2040579248201589118 · Twitter Post
• https://twitter.com/infoflowcloud/status/2040580394903322641 · Twitter Post
• https://vuldb.com/vuln/355280/cti · Note
• https://twitter.com/CVEarity/status/2040764197064298881 · Twitter Post
• https://vuldb.com/submit/782053 · Note
• https://tenda.com.cn · Note
• https://twitter.com/cyberbivash/status/2040628182835961997 · Twitter Post