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7.1 High

CVE-2025-64720 LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network…

Description

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in png_image_read_composite when processing palette images with PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly applies background compositing during premultiplication, violating the invariant component ≤ alpha × 257 required by the simplified PNG API. This issue has been patched in version 1.6.51.

Affected products and versions

Product Affected versions Fixed in
libpng 1.6 1.6.0 → < 1.6.51 1.6.51

References

Timeline

  1. Published
  2. Last modified

Other CVEs of libpng

The 13 CVEs of libpng →
CVE-2026-40930 LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster image files 5.4 Medium CVE-2026-34757 LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network… 5.1 Medium CVE-2026-33636 LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network… 7.6 High CVE-2026-33416 LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network… 7.5 High
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