# CVE-2026-7546

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

## Description

A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. The impacted element is the function find_host_ip of the component lighttpd. Such manipulation of the argument Host leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.

## Key facts

- **CVE ID:** CVE-2026-7546
- **Published:** 2026-05-01
- **CVSS severity:** CRITICAL
- **CVSS base score:** 9.8
- **CWE codes:** CWE-119, CWE-121

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-7546

## Citation

> AI Analytics. CVE-2026-7546. Retrieved 2026-07-12 from https://api.ai-analytics.org/cve/CVE-2026-7546. Derived from NIST NVD. Licensed CC0.

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