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 servers and redirect user traffic to malicious sites.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - disclosure@vulncheck.com

Published

2026-04-29

Last modified

2026-07-15

Weaknesses

CWE-290

Affected products

• W308r (Tenda)
• W308r Firmware (Tenda)

References

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