Skip to content
Fencer Vulns
medium 5.9

CVE-2019-15939 json

Divide By Zero in OpenCV.

published 2019-09-05 7 y ago modified 2026-09-10 1 mo ago also GHSA-hxfw-jm98-v4mq , PYSEC-2026-2799 , PYSEC-2026-2822 , PYSEC-2026-2838 , PYSEC-2026-722 , EUVD-2021-2211

cvss
5.9
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

An issue was discovered in OpenCV 4.1.0. There is a divide-by-zero error in cv::HOGDescriptor::getDescriptorSize in modules/objdetect/src/hog.cpp.

Patch / fix

  • pypi opencv-python 4.1.1.26
  • pypi opencv-python-headless 4.1.1.26
  • pypi opencv-contrib-python 4.1.1.26
  • pypi opencv-contrib-python-headless 4.1.1.26
  • opencv Debian 14, Debian 13, Debian 12 4.1.2+dfsg-3

debian advisories DEBIAN-CVE-2019-15939

  • opencv Ubuntu Pro 14.04 LTS 2.4.8+dfsg1-2ubuntu1.2+esm1
  • opencv Ubuntu Pro 16.04 LTS 2.4.9.1+dfsg-1.5ubuntu1.1+esm1
  • opencv Ubuntu Pro 18.04 LTS 3.2.0+dfsg-4ubuntu0.1+esm3

ubuntu advisories UBUNTU-CVE-2019-15939

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • opencv SLE Workstation Extension 15 SP2, SLE Workstation Extension 15 SP1, SLE Workstation Extension 15 +3 more 3.3.1-6.6.1

suse advisories SUSE-SU-2019:3192-2SUSE-SU-2019:3192-1

  • opencv openSUSE Tumbleweed 4.5.2-2.2
  • opencv3 openSUSE Tumbleweed 3.4.10-3.3
  • opencv openSUSE Leap 15.1 3.3.1-lp151.6.3.1

opensuse advisories openSUSE-SU-2024:11115-1openSUSE-SU-2024:11116-1openSUSE-SU-2019:2671-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-15939 updated cvss 5.9

opencv: division by zero in cv::HOGDescriptor::getDescriptorSize in modules/objdetect/src/hog.cpp

  • Red Hat Enterprise Linux 6 opencv, opencv-python
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 opencv, opencv-core, opencv-python Red Hat Enterprise Linux 8 opencv, opencv-core, opencv-contrib, python3-opencv
    affected: workaround, no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.46% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/opencv/opencv/pull/15382 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P
OSV 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
pypi opencv-python
<4.1.1.26
4.1.1.26
pypi opencv-python-headless
<4.1.1.26
4.1.1.26
pypi opencv-contrib-python
<4.1.1.26
4.1.1.26
pypi opencv-contrib-python-headless
<4.1.1.26
4.1.1.26

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.