A8004t Firmware
CVE-2026-1740
MEDIUM
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessSend crafted request to /cgi/timepro.cgi
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DeliveryBypass httpcon_check_session_url authentication
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ExploitAccess Hidden Hiddenloginsetup Interface
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ExecutionManipulate session parameters
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ImpactGain unauthorized access
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Authentication mechanism validation
MITRE ATT&CK
2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | EFM ipTIME A8004T firmware version 14.18.2 with /cgi/timepro.cgi endpoint accessible. No authentication required — remote unauthenticated exploitation against default configurations. |
| Impact | CVSS 7.3 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. Exploitable via remote/network. |
| Exploit ScenarioDerived | A remote attacker could exploit this flaw, improper authentication. |
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Alert meAnalysisAIv1 – Mar 12, 2026
EFM ipTIME A8004T firmware versions up to 14.18.2 contain an authentication bypass in the /cgi/timepro.cgi interface that allows remote attackers to circumvent session validation without credentials. Public exploit code exists for this vulnerability, and the vendor has not provided a patch despite early disclosure notification. Successful exploitation grants attackers unauthorized access with potential to read sensitive data, modify configurations, and disrupt service availability.
Earlier versions of this analysis (1)
A vulnerability was found in EFM ipTIME A8004T 14.18.2. This impacts the function httpcon_check_session_url of the file /cgi/timepro.cgi of the component Hidden Hiddenloginsetup Interface. [CVSS 7.3 HIGH]
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-287 (Improper Authentication). Affects A8004T Firmware. A vulnerability was found in EFM ipTIME A8004T 14.18.2. This impacts the function httpcon_check_session_url of the file /cgi/timepro.cgi of the component Hidden Hiddenloginsetup Interface. The manipulation results in improper authentication. The attack may be performed from remote. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
A vulnerability was found in EFM ipTIME A8004T 14.18.2. This impacts the function httpcon_check_session_url of the file /cgi/timepro.cgi of the component Hidden Hiddenloginsetup Interface. The manipulation results in improper authentication. The attack may be performed from remote. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Executive ViewAI
A high-severity vulnerability in EFM ipTIME A8004T routers (model 14.18.2) could allow attackers to bypass authentication controls and gain unauthorized access to administrative functions. Organizations deploying this device model face immediate risk of network compromise and data exposure if the vulnerability is exploited in the wild.
Restrict network access to the affected device's web interface via firewall rules and network segmentation; disable remote management access if not operationally required; implement WAF rules to block requests to /cgi/timepro.cgi with suspicious session parameters; enable authentication logging and establish alerts for failed login attempts; consider implementing reverse proxy authentication in front of the device until vendor patch is released.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)CVE.org
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Exploit-DB