{"cve":"CVE-2026-46131","nvd":{"published":"2026-05-28T10:16:28.663","modified":"2026-06-24T17:52:24.747","status":"Undergoing Analysis","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: check for nEPT/nNPT in slow flush hypercalls\n\nChecking is_guest_mode(vcpu) is incorrect, because translate_nested_gpa()\nis only valid if an L2 guest is running *with nested EPT/NPT enabled*.\nInstead use the same condition as translate_nested_gpa() itself.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/45fc766bc756ff1d66f8ca026a9c4f7f764adfae","https://git.kernel.org/stable/c/464af6fc2b1dcc74005b7f58ee3812b17777efee","https://git.kernel.org/stable/c/4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57","https://git.kernel.org/stable/c/971f17f5d91045404e3914029ea57c3da90179a4","https://git.kernel.org/stable/c/d6f4e217d663ede5becc2fd6cb612c749677387b"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:36:28.938604137+00:00"},"epss":{"cve":"CVE-2026-46131","score":0.00127,"percentile":0.02391,"date":"2026-11-01"},"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."]}