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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-13184
StatePUBLISHED
Assignercertcc
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-10 13:16:02 UTC
Updated2026-09-25 23:10:00 UTC
DescriptionUnauthenticated 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.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.112780000 probability, percentile 0.958330000 (date 2026-09-27)

Problem Types: CWE-863 | CWE-306 Missing Authentication for Critical Function

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Totolink X5000r - All All All
Operating System Totolink X5000r Firmware 9.1.0u.6369_b20230113 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Toto Link X5000Rs AX1800 Router affected V9.1.0u.6369_B20230113 custom Not specified

References

ReferenceSourceLinkTags
www.kb.cert.org/vuls/id/821724 af854a3a-2127-422b-91ae-364da2661108 www.kb.cert.org Third Party Advisory
hackingbydoing.wixsite.com/hackingbydoing/post/totolink-x5000r-ax1800-router-authenticat... [email protected] hackingbydoing.wixsite.com Exploit, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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