EUVD-2026-60037
GHSA-6h4w-hx37-cqg3
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Remote unauthenticated authentication bypass of the web management interface (AV:N/AC:L/PR:N/UI:N) yields full administrative control of the router, so C/I/A all High.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3DescriptionCVE.org
A vulnerability was detected in EFM ipTIME A3004T 14.19.0. The affected element is the function httpcon_check_session_url of the component Session Validation. Performing a manipulation results in improper authentication. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
AnalysisAI
Authentication bypass in EFM ipTIME A3004T (firmware 14.19.0) lets remote attackers defeat session validation through the httpcon_check_session_url function, granting unauthorized access to the router's web management interface. Publicly available exploit code exists, though the flaw is not yet listed in CISA KEV. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the ipTIME A3004T's HTTP web administration interface on firmware 14.19.0; because the flaw lies in the session-URL validation logic, no valid credentials or user interaction are needed (PR:N/UI:N). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N with High confidentiality, integrity, and availability impact) describes a remote, low-complexity, unauthenticated attack, consistent with a management-interface authentication bypass on a network device. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who can reach the A3004T's web management interface - for example a device with remote administration exposed to the WAN, or an attacker already on the local Wi-Fi/LAN - sends a crafted request that manipulates the httpcon_check_session_url session check to bypass authentication. With public POC code available, the attacker gains administrative control of the router, from which they can alter DNS settings, open ports, sniff traffic, or pivot to internal hosts. |
| Remediation | No vendor-released patch identified at time of analysis - EFM was contacted before disclosure but did not respond, so a fixed firmware version cannot be cited. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, conduct a complete inventory of EFM ipTIME A3004T devices running firmware 14.19.0 across all network segments and immediately implement firewall rules restricting remote access to the management interface to trusted administrative IP ranges only, combined with network segmentation if devices are internet-facing. …
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Same weakness CWE-287 – Improper Authentication
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today