Search threats, CVEs… ⌘K

Back to vendor advisories

Microsoft Security Response CenterCVE-2026-100204

HEIF Image Extensions Remote Code Execution Vulnerability

HighVendor CVSS 7.0 / 10 1 CVE Published Nov 10, 2026 at 8:00 AM UTC

Get alerts for HEIF Image Extension on Windows

Summary

Use after free in HEIF Image Extensions allows an unauthorized attacker to execute code locally.

Products covered

HEIF Image Extension on Windows 10 version 1809
HEIF Image Extension on Windows 10 version 21H2
HEIF Image Extension on Windows 10 version 22H2
HEIF Image Extension on Windows 11 version 23H2
HEIF Image Extension on Windows 11 version 24H2
HEIF Image Extension on Windows 11 version 25H2
HEIF Image Extension on Windows 11 version 26H1
HEIF Image Extension on Windows 11 version 26H2

Remediation

Release Notes

Vendor-listed fixes

1.2.62.0

CVEs in this advisory 1

CVE-2026-100204

Updates

Nov 10, 2026 at 8:00 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Nov 10, 2026 at 8:15 PM UTC
Added to SecurityAlert
We collected the advisory from the official source.

Source

Details collected from Microsoft Security Response Center.

Vendor: Microsoft Security Response Center
Advisory ID: CVE-2026-100204
Last source check: Nov 10, 2026 at 8:15 PM UTC

Official bulletin How SecurityAlert builds this record

Your environment

Check the systems you actually run

A vendor advisory can tell you what may be affected. It cannot tell you whether that product and version are installed in your environment.

Confirm the product and installed version.
Read the vendor's prerequisites and exceptions.
Test the update or mitigation through your normal change process.

Watch HEIF Image Extension on Windows

Keep following

Get new Microsoft Security Response Center advisories

Use the vendor-specific RSS feed or set up alerts for a product your team relies on.

Follow this vendor's RSS feed