CVE tracker / CVE-2025-64720

CVE-2025-64720

CVE-2025-64720 is the LIBPNG is vulnerable to a buffer overflow in `png_image_read_composite` via incorrect pale. Microsoft rates it Important, CVSS 7.1. It is not in CISA's Known Exploited Vulnerabilities catalog. Published November 27, 2025.

Risk summary

HighElevation of Privilege

7.1

CVSS v3 base

0.4%

EPSS: chance of exploitation in 30 days

High

Severity

Important

Microsoft's rating

In CISA KEV

How to fix it

Microsoft lists 33 affected products and the update that fixes each:

KB5082052 · fixed build 10.0.22631.6936
Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 23H2 for x64-based Systems
KB5082060 · fixed build 10.0.25398.2274
Windows Server 2022, 23H2 Edition (Server Core installation)
KB5082063 · fixed build 10.0.26100.32690
Windows Server 2025 (Server Core installation), Windows Server 2025
KB5082123 · fixed build 10.0.17763.8644
Windows Server 2019 (Server Core installation), Windows Server 2019, Windows 10 Version 1809 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems
KB5082126 · fixed build 6.3.9600.23132
Windows Server 2012 R2 (Server Core installation), Windows Server 2012 R2
KB5082127 · fixed build 6.2.9200.26026
Windows Server 2012 (Server Core installation), Windows Server 2012
KB5082142 · fixed build 10.0.20348.5020
Windows Server 2022 (Server Core installation), Windows Server 2022
KB5082198 · fixed build 10.0.14393.9060
Windows Server 2016 (Server Core installation), Windows Server 2016, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems
KB5082200 · fixed build 10.0.19045.7184, 10.0.19044.7184
Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 22H2 for x64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 21H2 for ARM64-based Systems, and 1 more
KB5083768 · fixed build 10.0.28000.1836
Windows 11 Version 26H1 for ARM64-based Systems, Windows 11 version 26H1 for x64-based Systems
KB5083769 · fixed build 10.0.26200.8246, 10.0.26100.8246
Windows 11 Version 25H2 for x64-based Systems, Windows 11 Version 25H2 for ARM64-based Systems, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems
CBL-Mariner Releases · fixed build 1.6.51-1
cbl2 libpng 1.6.39-1, azl3 libpng 1.6.40-1

What Microsoft changed

April 14, 2026: Added Window software to the Security Updates table. Customers that are running supported version of Windows are encouraged to update to the indicated version to be protected from this vulnerability.
December 2, 2025: Information published.
November 27, 2025: Information published.

Details

Weakness: CWE-125: Out-of-bounds Read
Known exploited (CISA KEV): Not listed
Published: November 27, 2025
Last revised: April 14, 2026

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References

Microsoft Security Update Guide NVD CVE record CWE

From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.