Vulnerability details

CVE-2026-18397

Thales SConnect

SConnect: Native Host Unauthenticated Remote Code Execution Vulnerability

CVSS 4.0

9.4Critical

Official 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.

CVSS scores

Score	Version	Source	Vector
9.4Critical	4.0	CVEProject cvelistV5 (CNA) (THA-PSIRT)	`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`

Affected products

Vendor	Product	Versions	Source
Thales	SConnect	v < 2.16.1.0	CVEProject cvelistV5 (CNA)

References and advisories

https://www.thalesgroup.com/en/product-security-incident-response vendor-advisory

Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published: 2026-10-02
Last updated: 2026-10-02
State: Published
Assigner (CNA): THA-PSIRT

Exploit prediction (EPSS)

0.34%

Probability of exploitation in 30 days

28%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-347
Improper verification of cryptographic signature
CWE-130
Improper handling of length parameter inconsistency
CWE-457
Use of uninitialized variable
CWE-252
Unchecked return value