CVE-2018-25318 CRITICAL

CVE-2018-25318: Tenda FH303/A300 V5.07.68_EN Cookie Session Weakness DNS Change

Vendor Tenda
Product FH303/A300
Weakness CWE-290
Published April 29, 2026
Last update April 30, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Tenda FH303/A300 firmware V5.07.68_EN contains a session weakness vulnerability that allows unauthenticated attackers to modify DNS settings by exploiting insufficient cookie validation. Attackers can send GET requests to the /goform/AdvSetDns endpoint with a crafted admin cookie to change DNS servers and redirect user traffic to malicious sites.

Key dates

02Disclosure timeline

April 29, 2026 CVE published
April 30, 2026 Record updated