Cookie Session Weakness in Tenda Wireless Routers
CVE-2018-25317

9.3CRITICAL

Key Information:

Vendor

Tenda
Status
W3002r
Vendor
CVE Published:
29 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-25317?

The Tenda W3002R, A302, and W309R wireless routers running version V5.07.64_en exhibit a vulnerability related to cookie session validation. This flaw allows unauthenticated attackers to send crafted GET requests to the /goform/AdvSetDns endpoint, enabling them to alter DNS settings. By exploiting this vulnerability, an attacker could redirect user traffic to malicious DNS servers, potentially leading to various forms of cyber attacks, including phishing and data interception.

Affected Version(s)

W3002R 5.07.64

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2018-25317 - Proof of Concept

References

https://www.exploit-db.com/exploits/44380
exploit
https://www.vulncheck.com/advisories/tenda-w3002r-a302-w3...
third-party-advisory

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.