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High, CVSS 8.8amended

Out-of-bounds Write in OpenCV

CVE-2017-12604GHSA-c7gp-2pch-qh2v

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (opencv-python 3.3.1.11; opencv-contrib-python 3.3.1.11), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
8.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
  • CVE-2017-12604: 1.99% estimated exploitation activity in the next 30 days; percentile 80.63 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

OpenCV (Open Source Computer Vision Library) through 3.3 (corresponding to OpenCV-Python and OpenCV-Contrib-Python 3.3.0.9) has an out-of-bounds write error in the FillUniColor function in utils.cpp when reading an image file by using cv::imread.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from ghsa record GHSA-c7gp-2pch-qh2v

  2. Revision 1 · created ·

    Published from osv record GHSA-c7gp-2pch-qh2v

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2017-12604

Advisory: Out-of-bounds Write in OpenCV
IDs: CVE-2017-12604, GHSA-c7gp-2pch-qh2v
Record: https://patchnext.com/advisories/cve-2017-12604 (revision 2, source checked 26 Oct 2026, 13:11 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.8)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: opencv-python 3.3.1.11; opencv-contrib-python 3.3.1.11. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI opencv-python: affected <= 3.3.0.9; fixed in 3.3.1.11
- PyPI opencv-contrib-python: affected <= 3.3.0.9; fixed in 3.3.1.11

## Suggested inspection (read-only)
- `python -m pip show opencv-python`: prints the installed version. Run with the environment that serves production active.
- `python -m pip show opencv-contrib-python`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on opencv-python, opencv-contrib-python.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-c7gp-2pch-qh2v (OSV record GHSA-c7gp-2pch-qh2v lists affected ranges: PyPI opencv-python >=0 =0 <3.3.1.11 (fixed))
- Verified: https://github.com/advisories/GHSA-c7gp-2pch-qh2v (GitHub-reviewed advisory GHSA-c7gp-2pch-qh2v lists affected ranges: PyPI opencv-python >=0 =0 <=3.3.0.9)

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