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HIGH

CVE-2025-64720

CVSS v3

7.1

HIGH

EPSS Score

0.4 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • java-1.8.0-openjdkAlmaLinux:9all versions · fixed in 1:1.8.0.482.b08-1.el9.alma.1and 16 other packages
  • java-1.8.0-openjdkAlmaLinux:8all versions · fixed in 1:1.8.0.482.b08-1.el8and 15 other packages
  • java-17-openjdkAlmaLinux:9all versions · fixed in 1:17.0.18.0.8-1.el9.alma.1and 22 other packages
  • java-17-openjdkAlmaLinux:8all versions · fixed in 1:17.0.18.0.8-1.el8and 22 other packages
  • java-21-openjdkAlmaLinux:10all versions · fixed in 1:21.0.10.0.7-1.el10.alma.1and 22 other packages
  • java-21-openjdkAlmaLinux:9all versions · fixed in 1:21.0.10.0.7-1.el9.alma.1and 22 other packages
  • java-21-openjdkAlmaLinux:8all versions · fixed in 1:21.0.10.0.7-1.el8and 22 other packages
  • java-25-openjdkAlmaLinux:10all versions · fixed in 1:25.0.2.0.10-1.el10and 25 other packages

5 more package ranges on OSV.dev

Vendor advisories

  • CVE-2025-64720 Red Hat Product Security3,667 products fixed · 26 known affected

    libpng: LIBPNG buffer overflow

    java-21-openjdk-portable.src as a component of Red Hat build of OpenJDK 11 ELS · java-21-openjdk-portable.src as a component of Red Hat build of OpenJDK 17 · java-21-openjdk-portable-rhel7.src as a component of Red Hat build of OpenJDK 21

  • RHSA-2026:80330 Red Hat Product Security13 products fixed

    Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

  • RHSA-2026:6732 Red Hat Product Security9 products fixed

    Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

  • RHSA-2026:0932 Red Hat Product Security780 products fixed

    Red Hat Security Advisory: java-1.8.0-openjdk security update

  • RHSA-2026:0933 Red Hat Product Security330 products fixed

    Red Hat Security Advisory: java-25-openjdk security update

  • RHSA-2026:0901 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: OpenJDK 25.0.2 Security Update for Portable Linux Builds

23 more advisories

Full record on NVD

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.

Technical details

Published
2025-11-25

Frequently asked questions

What is 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_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.

Is CVE-2025-64720 actively exploited?

Active exploitation of CVE-2025-64720 has not been confirmed. Its EPSS score was 0.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-64720?

CVE-2025-64720 has a CVSS v3 base score of 7.1 (HIGH severity).

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