Out-of-bounds Read in Pnggroup Libpng
CVE-2025-64720
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_c…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (23.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H.
Affected products
- Pnggroup Libpng — versions >= 1.6.0, < 1.6.51
Weakness classification (CWE)
Public proof-of-concept exploits
References
- https://github.com/pnggroup/libpng/security/advisories/GHSA-hfc7-ph9c-wcww (x_refsource_CONFIRM)
- https://github.com/pnggroup/libpng/issues/686 (x_refsource_MISC)
- https://github.com/pnggroup/libpng/pull/751 (x_refsource_MISC)
- https://github.com/pnggroup/libpng/commit/08da33b4c88cfcd36e5a706558a8d7e0e4773643 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-64720?
- CVE-2025-64720 is a high-severity vulnerability in Pnggroup Libpng, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2025-11-24.
- How severe is CVE-2025-64720?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2025-64720 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.