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CVE-2026-18397— SConnect: Native Host Unauthenticated Remote Code Execution Vulnerability

Quick assessment

Affected
Thales SConnect
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.

该漏洞允许攻击者在未经身份验证的情况下，通过在受害者的机器上执行远程代码（RCE），利用 SConnect 原生主机组件中的密码学缺陷和内存管理问题。 攻击利用了攻击者控制的网页与原生主机之间不受限制的通信接口，使得恶意输入能够绕过安全检查。

CVSS 9.4 · Critical EPSS 0.34% · P25

Affected Version Matrix 1

VendorProduct Version RangeStatus
Thales SConnect < 2.16.1.0 affected
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I. Basic Information for CVE-2026-18397

Vulnerability Information
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Vulnerability Title
SConnect: Native Host Unauthenticated Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
This vulnerability enables unauthenticated remote code execution (RCE) on a victim's machine by exploiting a combination of cryptographic weaknesses and memory management issues in the SConnect native host component. The attack leverages an unrestricted messaging interface between an attacker-controlled web page and the native host, allowing malicious input to bypass security checks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Thales SConnect 0 ~ 2.16.1.0 -

II. Public POCs for CVE-2026-18397

# POC Description Source Link Shenlong Link
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default-local-qwen3.6 · 10393 chars
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III. Intelligence Information for CVE-2026-18397

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Other References for CVE-2026-18397 (1)

IV. Related Vulnerabilities

Same vendor: Thales
Same weakness: CWE-347

V. Comments for CVE-2026-18397

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