CVE Catalog

CVE-2026-18397

CriticalCVSS 9.4
Published: Translated: NVD NIST

Summary

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.

Risk Assessment

An attacker can remotely execute arbitrary code without authentication, leading to full compromise of the victim's machine. This could result in data theft, malware installation, and further network escalation.

Recommendation

Update the SConnect native host component to a patched version or disable it if not used. Restricting communication between web pages and the native host is also recommended.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS