{"id":"CVE-2018-7542","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-7542","generatedAt":"2026-10-29T02:46:22.345Z","title":"An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC.","description":"An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC.","published":"2018-02-27T19:29:01.000Z","lastModified":"2026-06-17T02:03:20.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["xen/xen","debian/debian linux"],"epss":{"score":0.00382,"percentile":0.32035,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.38%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.securitytracker.com/id/1040776","source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201810-06","source":"cve@mitre.org"},{"url":"https://www.debian.org/security/2018/dsa-4131","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://xenbits.xen.org/xsa/advisory-256.html","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1040776","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201810-06","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4131","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://xenbits.xen.org/xsa/advisory-256.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-7542","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."}