CVE-2026-1741— EFM ipTIME A8004T Debug d.cgi httpcon_check_session_url backdoor
Quick assessment
Affected
EFM ipTIME A8004T
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
EFM ipTIME A8004T是韩国EFM公司的一款无线路由器。 EFM ipTIME A8004T 14.18.2版本存在安全漏洞，该漏洞源于对文件/sess-bin/d.cgi中函数httpcon_check_session_url的参数cmd的错误操作，可能导致后门。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-1741
Vulnerability Information
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Vulnerability Title
EFM ipTIME A8004T Debug d.cgi httpcon_check_session_url backdoor
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was determined in EFM ipTIME A8004T 14.18.2. Affected is the function httpcon_check_session_url of the file /sess-bin/d.cgi of the component Debug Interface. This manipulation of the argument cmd causes backdoor. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
隐藏功能
Source: CVE Program / CVE List V5
Vulnerability Title
EFM ipTIME A8004T 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EFM ipTIME A8004T是韩国EFM公司的一款无线路由器。 EFM ipTIME A8004T 14.18.2版本存在安全漏洞，该漏洞源于对文件/sess-bin/d.cgi中函数httpcon_check_session_url的参数cmd的错误操作，可能导致后门。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| EFM | ipTIME A8004T | 14.18.2 | - |
|
II. Public POCs for CVE-2026-1741
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · EFM · 2026-02-02 · 3 CVEs total
| CVE-2026-1740 | 7.3 HIGH | EFM ipTIME A8004T Hidden Hiddenloginsetup timepro.cgi httpcon_check_session_url improper a |
| CVE-2026-1742 | 4.7 MEDIUM | EFM ipTIME A8004T VPN Service timepro.cgi commit_vpncli_file_upload unrestricted upload |
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V. Comments for CVE-2026-1741
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