CVE-2026-18397: CWE-347 Improper verification of cryptographic signature in Thales SConnect
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.
CVE-2026-18397: CWE-347 Improper verification of cryptographic signature in Thales SConnect
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 v4.0
Score 9.4critical
Affected software
Thales
SConnect
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- THA-PSIRT
- Date Reserved
- 2026-07-30T14:55:56.425Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6abed843a43b0b3b890a35f7
Added to database: 10/01/2026, 22:01:39 UTC
Last updated: 10/01/2026, 22:01:39 UTC
Views: 1
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