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Vulnerability record · CVE-2019-5064 · published 3 January 2020

CVE-2019-5064: Opencv classic buffer overflow vulnerability

Opencv · Opencv

An exploitable heap buffer overflow vulnerability exists in the data structure persistence functionality of OpenCV, before version 4.2.0. A specially crafted JSON file can cause a buffer overflow, resulting in multiple heap corruptions and potentially code execution. An attacker can provide a specially crafted file to trigger this vulnerability.

8.8 CVSS 3.1 High EPSS 11% · top 4.3% CWE-120 · Classic buffer overflowCWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score, v2 6.8
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
8References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An exploitable heap buffer overflow vulnerability exists in the data structure persistence functionality of OpenCV, before version 4.2.0. A specially crafted JSON file can cause a buffer overflow, resulting in multiple heap corruptions and potentially code execution. An attacker can provide a specially crafted file to trigger this vulnerability.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/opencv/opencv/issues/15857 Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0853 ExploitThird Party Advisory
https://www.oracle.com//security-alerts/cpujul2021.html PatchThird Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html PatchThird Party Advisory
https://github.com/opencv/opencv/issues/15857 Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0853 ExploitThird Party Advisory
https://www.oracle.com//security-alerts/cpujul2021.html PatchThird Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-5064), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.