# CVE-2018-25317

> Vulnerability · severity: **CRITICAL** (CVSS 9.8).

## Description

Tenda W3002R/A302/W309R wireless routers version V5.07.64_en contain 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 primary and secondary DNS servers, redirecting user traffic to malicious DNS servers.

## Key facts

- **CVE ID:** CVE-2018-25317
- **Published:** 2026-04-29
- **CVSS severity:** CRITICAL
- **CVSS base score:** 9.8
- **CWE codes:** CWE-290

## Affected products

- `tenda:w3002r_firmware`
- `tenda:w3002r`
- `tenda:a302_firmware`
- `tenda:a302`
- `tenda:w309r_firmware`
- `tenda:w309r`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-25317

## Citation

> AI Analytics. CVE-2018-25317. Retrieved 2026-05-16 from https://api.ai-analytics.org/cve/CVE-2018-25317. Derived from NIST NVD. Licensed CC0.

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