CVE-2013-6360Public exploitNetwork attack vector

Unauthenticated TELNET enablement via backdoor

Published Feb 13, 2020 · Updated Aug 6, 2024

Backdoor in TRENDnet TS-S402 firmware 2.00.11 allows remote attackers to enable TELNET through a hidden access mechanism. Public records identify the locus only as a firmware backdoor and do not disclose its trigger or implementation details. The network-exposed service requires no authentication according to NVD, and enabling TELNET can provide remote management access with integrity impact; confidentiality and availability effects are not reported.

CVSS severity7.5
High
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Backdoor in TRENDnet TS-S402 firmware 2.00.11 allows remote attackers to enable TELNET through a hidden access mechanism. Public records identify the locus only as a firmware backdoor and do not disclose its trigger or implementation details. The network-exposed service requires no authentication according to NVD, and enabling TELNET can provide remote management access with integrity impact; confidentiality and availability effects are not reported.

The record

CVE
CVE-2013-6360
Published
Feb 13, 2020
Updated
Aug 6, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-287, T1021.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 13, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5.0NVDAV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
T1021.004Network Service Scanning: Telnet

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo