CVE-2019-9423 Out-of-bounds Write in OpenCV

What is CVE-2019-9423?

CVE-2019-9423 is a high-severity memory corruption vulnerability in Google Android, published on 27 Sep 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In opencv calls that use libpng, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges required. User interaction is not required for exploitation. Product: AndroidVersions: Android-10Android ID: A-110986616

Weakness: CWE-787

Which versions are affected by CVE-2019-9423?

12 open source packages ship an affected version, including opencv-contrib-python, opencv-contrib-python-headless and opencv-python. It affects 1 product.

Products include Google Android.

How do I fix CVE-2019-9423?

No fix has been published for CVE-2019-9423 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2019-9423 being exploited?

There is no known exploitation of CVE-2019-9423 in the wild and no public exploit code.

Other vulnerabilities in Google Android

• CVE-2026-58704 Google Pixel Improper Authorization Exploited High 8.8
• CVE-2025-48543 Android Runtime Use-After-Free Exploited High 8.8
• CVE-2023-35674 Android Framework Privilege Escalation Exploited High 8.8
• CVE-2025-48595 Android Framework Integer Overflow Exploited High 8.4
• CVE-2024-32896 Android Pixel Privilege Escalation Exploited High 8.1

All Google Android vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-8849-5h85-98qw, PYSEC-2026-2796, PYSEC-2026-2811, PYSEC-2026-2835, PYSEC-2026-719, UBUNTU-CVE-2019-9423.