{"api_version":"1","generated_at":"2026-04-23T04:33:51+00:00","cve":"CVE-2021-3444","urls":{"html":"https://cve.report/CVE-2021-3444","api":"https://cve.report/api/cve/CVE-2021-3444.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-3444","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-3444"},"summary":{"title":"CVE-2021-3444","description":"The bpf verifier in the Linux kernel did not properly handle mod32 destination register truncation when the source register was known to be 0. A local attacker with the ability to load bpf programs could use this gain out-of-bounds reads in kernel memory leading to information disclosure (kernel memory), and possibly out-of-bounds writes that could potentially lead to code execution. 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