CVE-2019-5064

mediumpriority · track · 39EPSS 0.107 · 96 %ileEURUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

10.7% (96th) EPSS

CVSS 6.8 · medium

Is it mine?

11 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–8.8

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.08.8highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.08.8highCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · talos-cna@cisco.com USexploitability 2.8 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · OSV

v3.18.8highAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-120USCWE-120USCWE-120USCWE-787US

affected products (11)

Products and version ranges known to be affected.

n/a opencv≤ OpenCV 4.1.0enisa_euvdEU
OpenCV team Open Source Computer Vision Library (OpenCV)≤ 4.2.0fstec_bduRU
Oracle Corp. Application Testing Suite≤ 13.3.0.1fstec_bduRU
opencv opencv4.0.0 → 4.2.0nvdUScpe:2.3:a:opencv:opencv:*:*:*:*:*:*:*:*
oracle application testing suite= 13.3.0.1nvdUScpe:2.3:a:oracle:application_testing_suite:*:*:*:*:*:*:*:*
oracle big data spatial and graph< 2.0nvdUScpe:2.3:a:oracle:big_data_spatial_and_graph:*:*:*:*:*:*:*:*
oracle enterprise manager base platform= 13.4.0.0nvdUScpe:2.3:a:oracle:enterprise_manager_base_platform:*:*:*:*:*:*:*:*
PyPI opencv-contrib-python< 4.2.0.32osvUSpkg:pypi/opencv-contrib-python
PyPI opencv-contrib-python-headless< 4.2.0.32osvUSpkg:pypi/opencv-contrib-python-headless
PyPI opencv-python< 4.2.0.32osvUSpkg:pypi/opencv-python
PyPI opencv-python-headless< 4.2.0.32osvUSpkg:pypi/opencv-python-headless

advisories (5)

Vendor and ecosystem advisories describing this.

GHSA-q799-q27x-vp7wOut-of-bounds Write in OpenCV2021-10-12ghsa · osvUS
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.
PYSEC-2026-2802Out-of-bounds Write in OpenCV2026-07-09vendor · osvUS
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.
PYSEC-2026-2828Out-of-bounds Write in OpenCV2026-07-09vendor · osvUS
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.
PYSEC-2026-2841Out-of-bounds Write in OpenCV2026-07-09vendor · osvUS
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.
PYSEC-2026-725Out-of-bounds Write in OpenCV2026-07-02vendor · osvUS
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.

also known as (14)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv nvd NVD CVE.org MITRE

published 2020-01-03modified 2026-06-17

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+16119 more

references (19)

External citations — patches, advisories, analysis.

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