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CVE-2026-18397.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSCRITICAL / 9.4CVSS 4.0 · psirt@thalesgroup.com
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSDeferredModified Oct 02, 2026

Disclosure 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.

Source-reported weakness categories

CWE-130, CWE-252, CWE-347, CWE-457

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

NIST National Vulnerability Database · NVD-CVE-2026-18397

Open original source · Updated Oct 02, 2026

Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.

Original records & references

PUBLISHED 2026-10-01T18:17:01-04:00
MODIFIED 2026-10-02T16:17:02-04:00
INGESTED 2026-10-06T11:45:14-04:00