{"cve":"CVE-2021-3669","nvd":{"published":"2022-08-26T16:15:09.273","modified":"2026-06-17T04:05:32.187","status":"Modified","description":"A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.","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":["CWE-770","CWE-400"],"references":["https://access.redhat.com/security/cve/CVE-2021-3669","https://bugzilla.redhat.com/show_bug.cgi?id=1980619","https://bugzilla.redhat.com/show_bug.cgi?id=1986473","https://security-tracker.debian.org/tracker/CVE-2021-3669","https://access.redhat.com/security/cve/CVE-2021-3669"],"products":["debian:debian_linux","fedoraproject:fedora","ibm:spectrum_copy_data_management","ibm:spectrum_protect_plus","linux:linux_kernel","redhat:build_of_quarkus","redhat:codeready_linux_builder","redhat:developer_tools","redhat:enterprise_linux","redhat:enterprise_linux_aus","redhat:enterprise_linux_for_ibm_z_systems","redhat:enterprise_linux_for_ibm_z_systems_eus","redhat:enterprise_linux_for_power_little_endian","redhat:enterprise_linux_for_power_little_endian_eus","redhat:enterprise_linux_for_real_time","redhat:enterprise_linux_for_real_time_for_nfv","redhat:enterprise_linux_for_real_time_for_nfv_tus","redhat:enterprise_linux_for_real_time_tus","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions","redhat:enterprise_linux_server_tus","redhat:openshift_container_platform","redhat:virtualization_host"],"source":"nvd","synced_at":"2026-10-19T21:35:14.992143698+00:00"},"epss":{"cve":"CVE-2021-3669","score":0.00297,"percentile":0.22394,"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."]}