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Critical · 9.8 CVE-2018-25316 EUVD-2018-21837GHSA-65qg-r2jh-j3cm

Tenda W308R v2 V5.07.48 Cookie Session Weakness DNS Change

Published Apr 29, 2026 · Updated Jul 15, 2026 · Assigned by VulnCheck

Description

Tenda W308R v2 V5.07.48 contains a cookie session weakness vulnerability that allows unauthenticated attackers to modify DNS settings by exploiting insufficient session validation. Attackers can send GET requests to the goform/AdvSetDns endpoint with a crafted admin language cookie to change DNS servers and redirect user traffic to malicious sites.

Affected products

VendorProductAffectedFixed
Tenda W308R v2 5.07.48 —

References