CVE-2026-69499
Windows Imaging Component Remote Code Execution Vulnerability
Description
Integer overflow or wraparound in Windows Imaging Component allows an unauthorized attacker to execute code over a network.
In plain language
AI Act nowThis is a serious Windows flaw that can let an attacker run code over the network on affected systems, so typical small businesses running these Windows versions should act by installing Microsoft’s fixed updates.
CVE-2026-69499 is a remote code execution vulnerability in the Windows Imaging Component caused by an integer overflow/wraparound condition that can be triggered by network-delivered input, allowing an unauthorized attacker to execute code.
What to do now
- Check the exact Windows edition and build number on every affected PC and server.
- Compare your build to the fixed builds listed for your OS in Microsoft’s update guidance for CVE-2026-69499: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69499
- Install the Microsoft updates that move you to at least one of the fixed versions for your specific Windows version.
- Reboot and confirm the build number after patching.
- If any device can’t be updated immediately, restrict network access to that device until it can be patched.
CVSS Vector Breakdown
AV:NAttack VectorAC:LAttack ComplexityPR:NPrivileges RequiredUI:RUser InteractionS:UScopeC:HConfidentialityI:HIntegrityA:HAvailabilityWeaknesses
Affected Products
Exploitability
Attack Graph
Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.
MITRE ATT&CK
1 techniqueReferences
- Microsoft Patch Tuesday for September 2026 — Snort rules and prominent vulnerabilitiesen·Cisco Talos· Exploited Windows zero-day
- Microsoft and Adobe Patch Tuesday, September 2026 Security Update Reviewen-us·Qualys Security Blog· Exploited Microsoft Exchange Server Qualys
- Microsoft September 2026 Patch Tuesday fixes 966 flaws, 2 zero-daysen-us·BleepingComputer· Exploited Windows patch-tuesday
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