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CVE-2026-19977— EFM ipTIME A3004T Session Validation httpcon_check_session_url improper authentication

Quick assessment

Affected
EFM ipTIME A3004T
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

EFM ipTIME A3004T是韩国EFM公司的一款无线路由器。 EFM ipTIME A3004T 14.19.0版本存在授权问题漏洞，该漏洞源于Session Validation组件中httpcon_check_session_url函数存在身份验证不当问题，可能导致远程攻击者利用该漏洞。

CVSS 10.0 · Critical EPSS 0.71% · P50

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
EFM ipTIME A3004T 14.19.0 affected
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I. Basic Information for CVE-2026-19977

Vulnerability Information
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Vulnerability Title
EFM ipTIME A3004T Session Validation httpcon_check_session_url improper authentication
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
EFM ipTIME A3004T 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EFM ipTIME A3004T是韩国EFM公司的一款无线路由器。 EFM ipTIME A3004T 14.19.0版本存在授权问题漏洞，该漏洞源于Session Validation组件中httpcon_check_session_url函数存在身份验证不当问题，可能导致远程攻击者利用该漏洞。
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 A3004T 14.19.0 cpe:2.3:a:efm:iptime_a3004t:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19977

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Qwen3.6-35B-A3B · 6304 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-19977

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Other References for CVE-2026-19977 (1)

IV. Related Vulnerabilities

Same product: ipTIME A3004T
Same vendor: EFM
Same weakness: CWE-287

V. Comments for CVE-2026-19977

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