CVE-2026-7546

CRITICAL 9.8

Totolink NR1800X lighttpd find_host_ip stack-based overflow

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-121 CWE-119
Vendor	totolink
Product	nr1800x
Published	May 1, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / NR1800X

9.1.0u.6279_B20210910

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/360357 vuldb.com: https://vuldb.com/vuln/360357/cti vuldb.com: https://vuldb.com/submit/804404 github.com: https://github.com/newym/cve/blob/main/totolinknr1800x.md totolink.net: https://www.totolink.net/

Credits

🔍 NEWYM (VulDB User)