Critical 9.8Published Jul 14, 2026

CVE-2026-15701Totolink NR1800X lighttpd formLogout.htm Form_Logout stack-based overflow

Updated under an hour ago (Oct 26, 2026, 1:40 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for Totolink NR1800X

Exploited in the last 30 days

A weakness has been identified in Totolink NR1800X 9.1.0u.6279_B20210910. Affected by this issue is the function Form_Logout of the file /formLogout.htm of the component lighttpd. This manipulation of the argument Host causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-121, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Jul 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Totolink NR1800X totolink:nr1800x_firmware	9.1.0u.6279_B20210910	CNA record

References

References

https://vuldb.com/vuln/378248	vdb-entry, technical-description
https://vuldb.com/vuln/378248/cti	signature, permissions-required
https://vuldb.com/cve/CVE-2026-15701	third-party-advisory
https://vuldb.com/submit/856136	third-party-advisory
https://github.com/fu9-dotom/cve/issues/1	exploit, issue-tracking
https://www.totolink.net/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.