CVE-2018-25318
Tenda FH303/A300 V5.07.68_EN Cookie Session Weakness DNS Change
- State
- Published
- Severity
- 9.3 Critical
- Published
- Apr 29, 2026
- Updated
- Oct 1, 2026
- Reserved
- Apr 29, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | 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 | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-290 Authentication Bypass by Spoofing
Affected Products
| Product | Versions |
|---|---|
FH303/A300Tenda |
|
References
- ExploitDB-44381exploit
- VulnCheck Advisory: Tenda FH303/A300 V5.07.68_EN Cookie Session Weakness DNS Changethird-party-advisory
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