CVE-2018-25316

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 ser...

critical 9.8 CVSS 3.1

Published: Apr 29, 2026

Modified: Apr 30, 2026

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.

References

https://www.exploit-db.com/exploits/44373
https://www.vulncheck.com/advisories/tenda-w308r-v2-cookie-session-weakness-dns-change

Version	3.1
Score	9.8 / 10
Severity	critical