🛡️ CVE-2019-5064 — opencv-contrib-python

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-120 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Out-of-bounds Write in OpenCV

An exploitable heap buffer overflow vulnerability exists in the data structure persistence functionality of OpenCV, version 4.1.0 (corresponds with OpenCV-Python version 4.1.2.30). 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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2019-5064 is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.

Affected software

CVE-2019-5064 is recorded against 4 packages.

  • opencv-contrib-python (fixed in 4.2.0.32)
  • opencv-contrib-python-headless (fixed in 4.2.0.32)
  • opencv-python (fixed in 4.2.0.32)
  • opencv-python-headless (fixed in 4.2.0.32)

Timeline and source

Published on 12 October 2021 and last revised on 13 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)
github.com (Web)
github.com (Web)
talosintelligence.com (Web)
www.oracle.com (Web)
www.oracle.com (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-120
Public Exploit ✅ No
Source OSV
Published 2021-10-12
Updated 2026-08-12
Modified 2026-07-13
Fix URL N/A

Affected Packages

Software From version Fixed in
opencv-contrib-python — 4.2.0.32
opencv-contrib-python-headless — 4.2.0.32
opencv-python — 4.2.0.32
opencv-python-headless — 4.2.0.32

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