{"cve":"CVE-2021-3764","nvd":{"published":"2022-08-23T16:15:09.837","modified":"2026-06-17T04:05:43.237","status":"Modified","description":"A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability.","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-401","CWE-400"],"references":["https://access.redhat.com/security/cve/CVE-2021-3764","https://bugzilla.redhat.com/show_bug.cgi?id=1997467","https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680","https://security-tracker.debian.org/tracker/CVE-2021-3764","https://access.redhat.com/security/cve/CVE-2021-3764"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:34:18.502168378+00:00"},"epss":{"cve":"CVE-2021-3764","score":0.00274,"percentile":0.19888,"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."]}