# CVE-2018-25316

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

## Description

Tenda W308R v2 V5.07.48 contains 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 DNS servers and redirect user traffic to malicious sites.

## Key facts

- **CVE ID:** CVE-2018-25316
- **Published:** 2026-04-29
- **CVSS severity:** CRITICAL
- **CVSS base score:** 9.8
- **CWE codes:** CWE-290

## Affected products

- `tenda:w308r_firmware`
- `tenda:w308r`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-25316

## Citation

> AI Analytics. CVE-2018-25316. Retrieved 2026-07-12 from https://api.ai-analytics.org/cve/CVE-2018-25316. Derived from NIST NVD. Licensed CC0.

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