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CVE-2025-64720

7.1 · HIGH
Published Nov 25, 2025 libpng CWE-125 EPSS 0.42% (35th pctl)

Overview

CVE-2025-64720 is a high-severity vulnerability affecting libpng libpng. It was published on November 25, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from libpng. Update libpng to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
libpng libpng >= 1.6.0, < 1.6.51 Affected

Frequently Asked Questions

What is CVE-2025-64720?

CVE-2025-64720 is a high-severity vulnerability affecting libpng libpng. It was published on November 25, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2025-64720?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-64720?

Check the references section for vendor advisories and patches from libpng. Update libpng to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-64720?

CyberStrike's AI-powered security agents can automatically detect CVE-2025-64720 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.