Buffer Overflow Affecting openexr package, versions [3.2.1,3.2.5)[3.3.0,3.3.6)[3.4.2,3.4.3)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-OPENEXR-15338766
- published24 Feb 2026
- disclosed10 Nov 2025
- creditJoshua Rogers
Introduced: 10 Nov 2025
CVE-2025-64182 (opens in a new tab)How to fix?
Upgrade openexr to version 3.2.5, 3.3.6, 3.4.3 or higher.
Overview
Affected versions of this package are vulnerable to Buffer Overflow via the channels and channel functions in the legacy Python adapter. An attacker can cause application crashes or achieve code execution by opening specially crafted EXR files or passing malicious Python objects.