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CVE-2026-19358— 3CORESec Trapdoor DefaultFunction access control

Quick assessment

Affected
3CORESec Trapdoor
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.

3CORESec Trapdoor是3CORESec组织的一款后门黑客工具。 3CORESec Trapdoor 1.2.2及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于DefaultFunction函数操作导致访问控制不当，可能允许远程攻击者利用此漏洞。

CVSS 6.3 · Medium EPSS 0.35% · P26

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
3CORESec Trapdoor 1.2.0 affected
1.2.1 affected
1.2.2 affected
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I. Basic Information for CVE-2026-19358

Vulnerability Information
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Vulnerability Title
3CORESec Trapdoor DefaultFunction access control
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in 3CORESec Trapdoor up to 1.2.2. Affected by this vulnerability is the function DefaultFunction. This manipulation causes improper access controls. The attack can be initiated remotely. The vendor was contacted early about this disclosure.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
3CORESec Trapdoor 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
3CORESec Trapdoor是3CORESec组织的一款后门黑客工具。 3CORESec Trapdoor 1.2.2及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于DefaultFunction函数操作导致访问控制不当，可能允许远程攻击者利用此漏洞。
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
3CORESec Trapdoor 1.2.0 cpe:2.3:a:3coresec:trapdoor:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19358

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III. Intelligence Information for CVE-2026-19358

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Vendor Advisories for CVE-2026-19358 (1)

Other References for CVE-2026-19358 (2)

IV. Related Vulnerabilities

Same weakness: CWE-284

V. Comments for CVE-2026-19358

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