{"cve":"CVE-2026-73066","nvd":{"published":"2026-08-11T15:17:38.777","modified":"2026-10-24T15:10:00.190","status":"Deferred","description":"Tesseract is an open source OCR engine. Prior to 5.5.3, a crafted .traineddata LSTM model component loaded through Tesseract's deserializer can cause an unchecked signed integer multiplication in Convolve::DeSerialize in src/lstm/convolve.cpp to wrap the convolution output-channel count, undersizing the forward-pass output buffer while writes use the unwrapped element count and causing a heap out-of-bounds write during OCR recognition. This issue is fixed in version 5.5.3.","cvss_v4":{"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N","score":6.8},"cvss_v3":null,"cwes":["CWE-787"],"references":["https://github.com/tesseract-ocr/tesseract/commit/2f4d2f4bf45c363785d7bf1da29b6628f8939a72","https://github.com/tesseract-ocr/tesseract/pull/4588","https://github.com/tesseract-ocr/tesseract/releases/tag/5.5.3","https://github.com/tesseract-ocr/tesseract/security/advisories/GHSA-7j76-5rq5-5jg8"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:34.184483516+00:00"},"epss":{"cve":"CVE-2026-73066","score":0.00126,"percentile":0.02305,"date":"2026-10-25"},"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."]}