{"id":"CVE-2021-36081","title":"Tesseract OCR 5.0.0-alpha-20201231 has a one_ell_conflict use-after-free during a strpbrk call.","summary":"Tesseract OCR 5.0.0-alpha-20201231 has a one_ell_conflict use-after-free during a strpbrk call.","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-416"],"vendor":"tesseract-ocr","product":"tesseract_ocr","affected":["tesseract_ocr = 5.0.0"],"published":"2021-07-01","updated":"2026-09-14","sourceUpdated":"2026-09-14T14:14:21.223","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-36081","references":[{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29698","label":"cve@mitre.org"},{"url":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/tesseract-ocr/OSV-2021-211.yaml","label":"cve@mitre.org"},{"url":"https://github.com/tesseract-ocr/tesseract/commit/e6f15621c2ab2ecbfabf656942d8ef66f03b2d55","label":"cve@mitre.org"},{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29698","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/google/oss-fuzz-vulns/blob/main/vulns/tesseract-ocr/OSV-2021-211.yaml","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/tesseract-ocr/tesseract/commit/e6f15621c2ab2ecbfabf656942d8ef66f03b2d55","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00887,"epssPercentile":0.57762,"ingestedAt":"2026-09-14T14:19:48.712Z","slug":"CVE-2021-36081","body":"## Overview\n\nTesseract OCR 5.0.0-alpha-20201231 has a one_ell_conflict use-after-free during a strpbrk call.\n\n## Affected\n\n- `tesseract_ocr = 5.0.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}