CVE-2019-19624
mediumpriority · track · 27EPSS 0.018 · 78 %ileEURUUSEPSS · scored 2026-10-27
An out-of-bounds read was discovered in OpenCV before 4.1.1. Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
advisories (5)
Vendor and ecosystem advisories describing this.
- GHSA-jggw-2q6g-c3m6Out-of-bounds Read in OpenCV2021-10-12ghsa · osvUS
An out-of-bounds read was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.0.25). Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.
- PYSEC-2026-2800Out-of-bounds Read in OpenCV2026-07-09vendor · osvUS
An out-of-bounds read was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.0.25). Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.
- PYSEC-2026-2824Out-of-bounds Read in OpenCV2026-07-09vendor · osvUS
An out-of-bounds read was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.0.25). Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.
- PYSEC-2026-2839Out-of-bounds Read in OpenCV2026-07-09vendor · osvUS
An out-of-bounds read was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.0.25). Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.
- PYSEC-2026-723Out-of-bounds Read in OpenCV2026-07-02vendor · osvUS
An out-of-bounds read was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.0.25). Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.
also known as (13)
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sources
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references (9)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2019-19624cnnvd
- https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418cnnvd
- https://github.com/opencv/opencv/issues/14554cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-19624cnnvd
- https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418enisa_euvd
- https://github.com/opencv/opencv/issues/14554enisa_euvd
- https://access.redhat.com/security/cve/cve-2019-19624Third Party Advisorynvd
- https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418PatchThird Party Advisorynvd
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