Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package libpng15 (opens in a new tab)
Threat Intelligence
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-RHEL10-LIBPNG15-17457309
- published25 Jun 2026
- disclosed24 Nov 2025
Introduced: 24 Nov 2025
CVE-2025-64506 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libpng15 package and not the libpng15 package as distributed by RHEL.
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, a heap buffer over-read vulnerability exists in libpng's png_write_image_8bit function when processing 8-bit images through the simplified write API with convert_to_8bit enabled. The vulnerability affects 8-bit grayscale+alpha, RGB/RGBA, and images with incomplete row data. A conditional guard incorrectly allows 8-bit input to enter code expecting 16-bit input, causing reads up to 2 bytes beyond allocated buffer boundaries. This issue has been patched in version 1.6.51.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2416906
- https://access.redhat.com/security/cve/CVE-2025-64506
- https://access.redhat.com/errata/RHSA-2026:6732
- https://github.com/pnggroup/libpng/commit/2bd84c019c300b78e811743fbcddb67c9d9bf821
- https://github.com/pnggroup/libpng/pull/749
- https://github.com/pnggroup/libpng/security/advisories/GHSA-qpr4-xm66-hww6