Vulnerability · Published Jan 26, 2026 · Assigned by VulnCheck

CVE-2026-24435Tenda W30E V2 Permissive CORS Allows Cross-origin Data Access

High 7.1

In plain English

A high-severity security flaw in W30E V2 from Shenzhen Tenda Technology Co., Ltd.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.2%top 83.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Shenzhen Tenda W30E V2 firmware versions up to and including V16.01.0.19(5037) implement an insecure Cross-Origin Resource Sharing (CORS) policy on authenticated administrative endpoints. The device sets Access-Control-Allow-Origin: * in combination with Access-Control-Allow-Credentials: true, allowing attacker-controlled origins to issue credentialed cross-origin requests.

Affected products (as reported)

Vendor	Product	Versions
Shenzhen Tenda Technology Co., Ltd.	W30E V2	0 – through 16.01.0.19(5037)

Weakness: CWE-942 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://www.tendacn.com/product/W30E product
https://www.vulncheck.com/advisories/tenda-w30e-v2-permissive-cors-allows-cross-origin-data-access third-party-advisory