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CVE-2018-25318 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: April 29, 2026

Tenda FH303/A300 - Broken Access Control

Published: April 29, 2026Updated: April 29, 2026Remote Exploitable

Overview

Tenda FH303/A300 firmware V5.07.68_EN contains a broken access control vulnerability caused by insufficient cookie validation in /goform/AdvSetDns, letting unauthenticated attackers modify DNS settings via crafted admin cookie.

Severity & Score

Severity: Critical

CVSS Score: 9.8

Impact

Unauthenticated attackers can modify DNS settings, redirecting user traffic to malicious sites and enabling phishing or man-in-the-middle attacks.

Mitigation

Update to the latest firmware version.

References

https://www.exploit-db.com/exploits/44381
https://www.vulncheck.com/advisories/tenda-fh303-a300-68-en-cookie-session-weakness-dns-change

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2018-25318
Severity: Critical
CVSS Score: 9.8
Type: broken_access_control
Status: new

CWE

CWE-290

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H