PT-2026-36293 · Totolink+1 · Nr1800X+1

Newym · Published 2026-05-01 · Updated 2026-05-15 · CVE-2026-7546

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Totolink NR1800X version 9.1.0u.6279 B20210910

Description A stack-based buffer overflow exists in the lighttpd component. This issue occurs when the find host ip() function improperly handles the Host argument, allowing a remote attacker to execute the attack.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Stack Overflow

Buffer Overflow

Weakness Enumeration

CWE-121

CWE-119

Related Identifiers

CVE-2026-7546

Affected Products

Nr1800X

Lighttpd

References · 17

• 🔥 https://github.com/newym/cve/blob/main/totolinknr1800x.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-7546 · Security Note
• https://totolink.net · Note
• https://vuldb.com/submit/804404 · Note
• https://vuldb.com/vuln/360357 · Note
• https://t.me/CVEtracker/52384 · Telegram Post
• https://vuldb.com/vuln/360357/cti · Note
• https://t.me/cveNotify/161684 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2050077180856545695 · Twitter Post
• https://twitter.com/lyrie_ai/status/2055091056480268567 · Twitter Post
• https://twitter.com/CVEarity/status/2050156033730064606 · Twitter Post
• https://twitter.com/infoflowcloud/status/2050144746509640080 · Twitter Post
• https://twitter.com/lyrie_ai/status/2055091058917216611 · Twitter Post
• https://twitter.com/OrizonCyber/status/2050085351432114195 · Twitter Post
• https://twitter.com/CVEnew/status/2050144035516629440 · Twitter Post