{"cve":"CVE-2022-49611","nvd":{"published":"2025-02-26T07:01:36.553","modified":"2026-06-17T05:18:37.537","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/speculation: Fill RSB on vmexit for IBRS\n\nPrevent RSB underflow/poisoning attacks with RSB.  While at it, add a\nbunch of comments to attempt to document the current state of tribal\nknowledge about RSB attacks and what exactly is being mitigated.","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/17a9fc4a7b91f8599223631bb6ae6416bc0de1c0","https://git.kernel.org/stable/c/3d323b99ff5c8c57005184056d65f6af5b0479d8","https://git.kernel.org/stable/c/4d7f72b6e1bc630bec7e4cd51814bc2b092bf153","https://git.kernel.org/stable/c/8c38306e2e9257af4af2819aa287a4711ff36329","https://git.kernel.org/stable/c/8d5cff499a6d740c91ff37963907e0e983c37f0f"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2022-49611","score":0.00284,"percentile":0.20993,"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."]}