CVE-2025-53766

CRITICALNVD 9.89.8—

9.8

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

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 86.4%
KEV: Not listed

Published

August 12, 2025

Last Modified

May 22, 2026

Advisory Details (1)

Auto-updated May 22, 2026

Patch available. Sources: microsoft.

microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

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

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-122Heap-based Buffer Overflow

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2025-53766?

CVE-2025-53766 is a critical vulnerability published on August 12, 2025. Heap-based buffer overflow in Windows GDI+ allows an unauthorized attacker to execute code over a network.

When was CVE-2025-53766 disclosed?

CVE-2025-53766 was first published in the National Vulnerability Database on August 12, 2025, with the most recent update on May 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2025-53766 actively exploited?

CVE-2025-53766 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 86.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2025-53766?

CVE-2025-53766 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2025-53766?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-53766, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2025-53766

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

Security Update Guide - Microsoft Security Response Center

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2025-53766?

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Advisory Details (1)

Frequently asked(5)

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