{"id":"CVE-2026-18397","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-18397","generatedAt":"2026-10-07T18:13:37.320Z","title":"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.","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.\n\nThe attack leverages an unrestricted messaging interface between an attacker-controlled web page and the native host, allowing malicious input to bypass security checks.","published":"2026-10-01T22:17:01.000Z","lastModified":"2026-10-02T20:17:02.000Z","status":"Deferred","sourceIdentifier":"psirt@thalesgroup.com","cvss":{"version":"4.0","score":9.4,"severity":"CRITICAL","vector":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-130","CWE-252","CWE-347","CWE-457"],"affected":[],"epss":{"score":0.00337,"percentile":0.24912,"date":"2026-10-06","history":[{"date":"2026-10-02","score":0.00337,"percentile":0.24765}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-01T22:17:01.000Z","detail":{"score":"9.4","severity":"CRITICAL","publishedAt":"2026-10-01T22:17:01.220Z"},"summary":"New CVE, critical severity (CVSS 9.4)."}],"references":[{"url":"https://www.thalesgroup.com/en/product-security-incident-response","source":"psirt@thalesgroup.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-18397","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}