{"cve":"CVE-2020-25656","nvd":{"published":"2020-12-02T01:15:12.607","modified":"2026-06-17T03:07:04.270","status":"Modified","description":"A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N","score":4.1},"cwes":["CWE-416"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1888726","https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html","https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html","https://lkml.org/lkml/2020/10/16/84","https://lkml.org/lkml/2020/10/29/528"],"products":["debian:debian_linux","linux:linux_kernel","redhat:enterprise_linux","starwindsoftware:starwind_virtual_san"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-25656","score":0.00439,"percentile":0.38215,"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."]}