{"id":"CVE-2021-28233","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-28233","generatedAt":"2026-10-27T21:19:42.838Z","title":"Heap-based Buffer Overflow vulnerability exists in ok-file-formats 1 via the ok_jpg_generate_huffman_table function in ok_jpg.c.","description":"Heap-based Buffer Overflow vulnerability exists in ok-file-formats 1 via the ok_jpg_generate_huffman_table function in ok_jpg.c.","published":"2021-08-27T19:15:08.000Z","lastModified":"2026-06-17T03:46:05.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":["ok-file-formats project/ok-file-formats"],"epss":{"score":0.01064,"percentile":0.64432,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.06%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/brackeen/ok-file-formats/issues/11","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/brackeen/ok-file-formats/issues/11","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-28233","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}