{"cve":"CVE-2023-46840","nvd":{"published":"2024-03-20T11:15:08.180","modified":"2026-06-17T06:31:44.270","status":"Analyzed","description":"Incorrect placement of a preprocessor directive in source code results\nin logic that doesn't operate as intended when support for HVM guests is\ncompiled out of Xen.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N","score":4.1},"cwes":["CWE-670"],"references":["https://xenbits.xenproject.org/xsa/advisory-450.html","http://xenbits.xen.org/xsa/advisory-450.html","https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XLL6SQ6IKFYXLYWITYZCRV5IBRK5G35R/","https://xenbits.xenproject.org/xsa/advisory-450.html"],"products":["fedoraproject:fedora","xen:xen"],"source":"nvd","synced_at":"2026-10-19T21:47:51.568503435+00:00"},"epss":{"cve":"CVE-2023-46840","score":0.00264,"percentile":0.18419,"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."]}