#VU118779 Out-of-bounds read in libpng - CVE-2025-64506
Published: November 26, 2025
Vulnerability identifier: #VU118779
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-64506
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
libpng
libpng
Software vendor:
libpng
libpng
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the png_write_image_8bit() function when processing 8-bit images through the simplified write API with convert_to_8bit enabled. A remote attacker can pass a specially crafted image file to the application, trigger an out-of-bounds read error and read contents of memory on the system.
Remediation
Install updates from vendor's website.