CVE-2017-12862 Improper Restriction of Operations within the Bounds of a Memory Buffer in OpenCV

What is CVE-2017-12862?

CVE-2017-12862 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 15 Aug 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

In modules/imgcodecs/src/grfmt_pxm.cpp, the length of buffer AutoBuffer _src is small than expected, which will cause copy buffer overflow later. If the image is from remote, may lead to remote code execution or denial of service. This affects Opencv 3.3 and earlier.

Weakness: CWE-787

Which versions are affected by CVE-2017-12862?

6 open source packages ship an affected version, including opencv-contrib-python and opencv-python. It affects 2 products.

Products include Debian Debian Linux, Opencv Opencv.

How do I fix CVE-2017-12862?

Upgrade opencv-contrib-python to 3.3.1.11 or later.

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

Is CVE-2017-12862 being exploited?

There is no known exploitation of CVE-2017-12862 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2017-12862, GHSA-5rpc-gwh9-q9fg, PYSEC-2026-2807, PYSEC-2026-699, UBUNTU-CVE-2017-12862.