CVE-2019-0903: Windows GDI memory handling remote code execution

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 17 September 2026. Confidence: medium.

high priorityNetwork-reachable code execution with known exploitation in the wild (CISA KEV) and a high EPSS percentile, though it requires user interaction.

What it is

Windows Graphics Device Interface (GDI) mishandles objects in memory, allowing remote code execution. The record gives no root-cause detail beyond this, but the flaw affects a broad set of Windows client and server releases and is listed in CISA's Known Exploited Vulnerabilities catalog.

Impact

An attacker who gets code to run in the context of the affected process can execute arbitrary code on the target system, with high impact to confidentiality, integrity and availability per the CVSS vector.

Attack surface

The vector is network-reachable (AV:N) with no privileges required (PR:N), but user interaction is required (UI:R), so exploitation depends on a victim opening or rendering crafted content that reaches GDI.

Exploitation

CVE-2019-0903 is in CISA KEV (added 2022-03-25, due 2022-04-15), indicating known exploitation in the wild; EPSS 30-day probability is 0.21713 (97.5th percentile). No ransomware campaign use is recorded.

What to do

• Apply the Microsoft security update referenced in the vendor advisory for all affected Windows versions.
• Prioritize patching internet-facing and user-workstation systems, since exploitation requires a victim to render crafted content.
• Restrict or block untrusted files and content types that invoke GDI rendering where business needs allow.
• Track KEV remediation deadlines and confirm all listed Windows builds are covered.

Detection

• Monitor for processes spawning unexpectedly from applications that render images or documents (for example Office, browsers, image viewers).
• Alert on suspicious child processes or script interpreters launched by GDI-using applications.
• Hunt for known exploitation artifacts and unusual memory-corruption crash patterns in GDI-related processes.
• Verify patch state of all affected Windows 7, 8.1, 10 and Server builds against the vendor advisory.

This assessment is produced automatically and is not human-reviewed. Verify against the vendor advisory before acting on it.