{"cve":"CVE-2018-14775","nvd":{"published":"2018-08-01T06:29:00.633","modified":"2026-06-17T01:41:36.960","status":"Modified","description":"tss_alloc in sys/arch/i386/i386/gdt.c in OpenBSD 6.2 and 6.3 has a Local Denial of Service (system crash) due to incorrect I/O port access control on the i386 architecture.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-20"],"references":["http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c","http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/i386/i386/gdt.c.diff?r1=1.37&r2=1.37.8.1&f=h","http://www.securitytracker.com/id/1041550","https://ftp.openbsd.org/pub/OpenBSD/patches/6.2/common/020_ioport.patch.sig","https://ftp.openbsd.org/pub/OpenBSD/patches/6.3/common/015_ioport.patch.sig"],"products":["openbsd:openbsd"],"source":"nvd","synced_at":"2026-10-19T20:52:03.425131697+00:00"},"epss":{"cve":"CVE-2018-14775","score":0.00341,"percentile":0.27679,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}