CVE-2026-72243 in Linux

Résumé

par MITRE • 15/08/2026

In the Linux kernel, the following vulnerability has been resolved:

selinux: check connect-related permissions on TCP Fast Open

Similar to Landlock, SELinux was not updated when TCP Fast Open support was introduced to ensure connect-related permissions are checked when using TCP Fast Open. Update its socket_sendmsg() hook to call selinux_socket_connect() when MSG_FASTOPEN is passed.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

• Responsable: Linux
• Réserver: 09/08/2026
• Divulgation: 15/08/2026
• Modérer: accepté
• Entrée: VDB-390658
• CPE: prêt
• CWE: CWE-275 (confirmé)
• CVSS: 9.9 (VulDB)
• EPSS: 0.00215
• KEV: non
• Activités: très faible
• Secteur: Police, Government, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-72243
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-72243
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-72243/