{"cve":"CVE-2021-3753","nvd":{"published":"2022-02-16T19:15:08.647","modified":"2026-06-17T04:05:42.113","status":"Modified","description":"A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). 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:L/UI:N/S:U/C:H/I:N/A:N","score":4.7},"cwes":["CWE-125","CWE-362"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1999589","https://github.com/torvalds/linux/commit/2287a51ba822384834dafc1c798453375d1107c7","https://security.netapp.com/advisory/ntap-20221028-0003/","https://www.openwall.com/lists/oss-security/2021/09/01/4","https://bugzilla.redhat.com/show_bug.cgi?id=1999589"],"products":["linux:linux_kernel","netapp:active_iq_unified_manager","netapp:bootstrap_os","netapp:element_software","netapp:h300s_firmware","netapp:h410c_firmware","netapp:h410s_firmware","netapp:h500s_firmware","netapp:h700s_firmware","netapp:hci_management_node","netapp:solidfire","redhat:enterprise_linux"],"source":"nvd","synced_at":"2026-10-19T21:28:04.509275555+00:00"},"epss":{"cve":"CVE-2021-3753","score":0.00364,"percentile":0.30266,"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."]}