CVE-2025-53766

Name: CVE-2025-53766
Creator: NVD / NIST
Published: 2025-08-12T18:15:45.4+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 6.71%

Last modified Jun 17, 2026

CVE-2025-53766 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.. EPSS estimates a 6.71% chance of exploitation in the next 30 days.

Description

Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

6.71%

93.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-122

Affected Software

Vendor	Product	Versions	Update
Microsoft	365 Copilot	< 16.0.19127.20000	—
Microsoft	Office	< 16.0.14326.22618	—
Microsoft	Windows 10 1507	< 10.0.10240.21100	—
Microsoft	Windows 10 1607	< 10.0.14393.8330	—
Microsoft	Windows 10 1809	< 10.0.17763.7678	—
Microsoft	Windows 10 21h2	< 10.0.19044.6216	—
Microsoft	Windows 10 22h2	< 10.0.19045.6216	—
Microsoft	Windows 11 22h2	< 10.0.22621.5768	—
Microsoft	Windows 11 23h2	< 10.0.22631.5768	—
Microsoft	Windows 11 24h2	< 10.0.26100.4851	—
Microsoft	Windows Server 2008	All versions	Sp2
Microsoft	Windows Server 2008	r2	Sp1
Microsoft	Windows Server 2012	All versions	—
Microsoft	Windows Server 2012	r2	—
Microsoft	Windows Server 2016	< 10.0.14393.8330	—
Microsoft	Windows Server 2019	< 10.0.17763.7678	—
Microsoft	Windows Server 2022	< 10.0.20348.3989	—
Microsoft	Windows Server 2022 23h2	< 10.0.25398.1791	—
Microsoft	Windows Server 2025	< 10.0.26100.4851	—

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53766Vendor Advisory

Timeline

Published: Aug 12, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-53766?

Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.

How severe is CVE-2025-53766?

CVE-2025-53766 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 6.71% probability of exploitation in the next 30 days.

How do I fix CVE-2025-53766?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-53766?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST