Out-of-bounds Read Affecting libpng package, versions [1.6.32,1.6.51)
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Test your applications- Snyk IDSNYK-CONAN-LIBPNG-14103025
- published24 Nov 2025
- disclosed23 Nov 2025
- creditSamsung-PENTEST
Introduced: 23 Nov 2025
NewCVE-2025-64720 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade libpng to version 1.6.51 or higher.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read via the png_image_read_composite function when reading palette images with the PNG_FLAG_OPTIMIZE_ALPHA flag set. An attacker can supply a specially-crafted PNG image that triggers an invalid alpha pre-multiplication calculation.