Critical 9.8Published Dec 10, 2025

CVE-2025-13184Unauthenticated Telnet enablement via cstecgi.cgi (auth bypass) leading to unauthenticated root login with a blank password

Updated under an hour ago (Oct 28, 2026, 4:50 AM ET)

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It affects Toto Link X5000R's (AX1800 router) and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Toto Link X5000R's (AX1800 router)

Exploited in the last 30 days

Unauthenticated Telnet enablement via cstecgi.cgi (auth bypass) leading to unauthenticated root login with a blank password on factory/reset X5000R V9.1.0u.6369_B20230113 (arbitrary command execution). Earlier versions that share the same implementation, may also be affected.

CVSS: 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-306
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: certcc
NVD analysis: Analyzed
Record last updated: Dec 10, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Toto Link X5000R's (AX1800 router) toto_link:x5000r_s_ax1800_router (from the name)	before V9.1.0u.6369_B20230113	CNA record
totolink x5000r_firmware totolink:x5000r_firmware	9.1.0u.6369_b20230113	NVD

References

References

https://hackingbydoing.wixsite.com/hackingbydoing/post/totolink-x5000r-ax1800-router-authentication-bypass	exploit, third-party-advisory
https://www.kb.cert.org/vuls/id/821724	third-party-advisory

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.