{"api_version":"1","generated_at":"2026-04-22T21:15:00+00:00","cve":"CVE-2021-3697","urls":{"html":"https://cve.report/CVE-2021-3697","api":"https://cve.report/api/cve/CVE-2021-3697.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-3697","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-3697"},"summary":{"title":"CVE-2021-3697","description":"A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. 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to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12."}]}},"nvd":{"publishedDate":"2022-07-06 16:15:00","lastModifiedDate":"2023-09-13 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RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided.","Type":"Description","Title":null}]}}}