{"id":"CVE-2023-1637","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-1637","generatedAt":"2026-10-27T17:45:22.858Z","title":"A flaw that boot CPU could be vulnerable for the speculative execution behavior kind of attacks in the Linux kernel X86 CPU Power management options functionality was found in the way user resuming CPU from suspend-to-RAM.","description":"A flaw that boot CPU could be vulnerable for the speculative execution behavior kind of attacks in the Linux kernel X86 CPU Power management options functionality was found in the way user resuming CPU from suspend-to-RAM. A local user could use this flaw to potentially get unauthorized access to some memory of the CPU similar to the speculative execution behavior kind of attacks.","published":"2023-03-27T22:15:21.000Z","lastModified":"2026-06-17T05:28:25.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-226","CWE-212"],"affected":["linux/linux kernel"],"epss":{"score":0.0022,"percentile":0.12446,"date":"2026-10-26","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 (0.22%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e2a1256b17b16f9b9adf1b6fea56819e7b68e463","tags":["Mailing List","Patch"],"source":"secalert@redhat.com"},{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=27398","tags":["Issue Tracking"],"source":"secalert@redhat.com"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e2a1256b17b16f9b9adf1b6fea56819e7b68e463","tags":["Mailing List","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=27398","tags":["Issue Tracking"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=27398","tags":["Issue Tracking"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-1637","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."}