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High

Integer Overflow or Wraparound in OpenCV

  • Disclosed: 12.10.2021
  • Updated: 11.10.2026 15:17

In opencv/modules/imgcodecs/src/grfmt_pxm.cpp, function ReadNumber did not checkout the input length, which lead to integer overflow. If the image is from remote, may lead to remote code execution or denial of service. This affects OpenCV 3.3 (corresponding with OpenCV-Python version 3.3.0.9) and earlier.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Python (PyPI) opencv-contrib-python < 3.3.1.11 3.3.1.11
Python (PyPI) opencv-python < 3.3.1.11 3.3.1.11

References

CVSS score 8.8/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-190
Platform
Python (PyPI)
Package
opencv-contrib-python, opencv-python
Disclosed
12.10.2021
Updated
11.10.2026 15:17

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-697 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - PYSEC-2026-2804 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-267x-w5hx-8hjr - CC BY 4.0

Vulnerability history: opencv-python

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (32) in the archive
Total entries
32
First → latest
10.2021 08.2024
Without a fix
2
Exploited in attacks
0

Severity breakdown

  • High 23
  • Medium 8
  • Unrated 1

Disclosures per year

Severity:
  1. opencv-python bundled libwebp binaries in wheels that are vulnerable to CVE-2023-4863
    High · 8.8 ghsa-qr4w-53vh-m672 < 4.8.1.78 4.8.1.78
  2. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2019-5064 < 4.2.0.32 4.2.0.32
  3. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2019-5063 <= 4.1.0.25 no fix
  4. Out-of-bounds Write in OpenCV
    High · 7.8 CVE-2019-9423 <= 4.1.1.26 no fix
  5. NULL Pointer Dereference in OpenCV.
    High · 7.5 CVE-2019-14493 < 4.1.1.26 4.1.1.26
  6. Out-of-bounds Read and Out-of-bounds Write in OpenCV
    High · 7.5 CVE-2019-14492 < 3.4.7.28, >= 4.0.0.21, < 4.1.1.26 3.4.7.28, 4.1.1.26
  7. Out-of-bounds Read in OpenCV
    High · 8.2 CVE-2019-14491 < 3.4.7.28, >= 4.0.0.21, < 4.1.1.26 3.4.7.28, 4.1.1.26
  8. Integer Overflow or Wraparound in OpenCV.
    High · 8.8 CVE-2017-1000450 < 3.3.1.11 3.3.1.11
  9. Out-of-bounds Read in OpenCV
    High · 7.5 CVE-2017-18009 < 3.4.1.15 3.4.1.15
  10. Integer Overflow or Wraparound in OpenCV this entry
    High · 8.8 CVE-2017-12864 < 3.3.1.11 3.3.1.11
  11. Integer Overflow or Wraparound in OpenCV
    High · 8.8 CVE-2017-12863 < 3.3.1.11 3.3.1.11
  12. Improper Restriction of Operations within the Bounds of a Memory Buffer in OpenCV
    High · 8.8 CVE-2017-12862 < 3.3.1.11 3.3.1.11
  13. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2017-12606 < 3.3.1.11 3.3.1.11
  14. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2017-12605 < 3.3.1.11 3.3.1.11
  15. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2017-12604 < 3.3.1.11 3.3.1.11
  16. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2017-12603 < 3.3.1.11 3.3.1.11
  17. Denial of Service in OpenCV
    High · 7.5 CVE-2017-12602 < 3.3.1.11 3.3.1.11
  18. Improper Restriction of Operations within the Bounds of a Memory Buffer in OpenCV
    High · 8.8 CVE-2017-12601 < 3.3.1.11 3.3.1.11
  19. Denial of Service in OpenCV
    High · 7.5 CVE-2017-12600 < 3.3.1.11 3.3.1.11
  20. Out-of-bounds Read in OpenCV
    High · 8.8 CVE-2017-12599 < 3.3.1.11 3.3.1.11
  21. Out-of-bounds Read in OpenCV
    High · 8.8 CVE-2017-12598 < 3.3.1.11 3.3.1.11
  22. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2017-12597 < 3.3.1.11 3.3.1.11
  23. Double Free in OpenCV
    High · 8.8 CVE-2016-1516 < 3.3.1.11 3.3.1.11

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