Recorded 18 Oct 2026 at 14:54 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.

The historical field “Public exploit code” recorded Nuclei detection-template membership. It did not establish exploit availability. The original recorded fields remain below.

The historical “Publicly disclosed: No” field could represent a missing MSRC assessment. It does not establish that the vulnerability was undisclosed. The original recorded fields remain below.

CVEMicrosoft Security Response Center

Raw Image Extension Remote Code Execution Vulnerability

Heap-based buffer overflow in Windows Raw Image Extension allows an unauthorized attacker to execute code over a network.

What it said

CVE: CVE-2026-21413
Severity: Critical
CVSS base score: 9.8
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Impact: Remote Code Execution
Exploitation detected: Not reported by MSRC
Publicly disclosed: No
Exploitability: Exploitation Less Likely
Component: Windows Raw Image Extension
Weakness: CWE-122: Heap-based Buffer Overflow
Issued by: Cisco Talos
Customer action: Required: apply the update
Affected products: Raw Image Extension on Windows 10 for 32-bit Systems, Raw Image Extension on Windows 10 for x64-based Systems, Raw Image Extension on Windows 10 Version 1607 for 32-bit Systems, Raw Image Extension on Windows 10 Version 1607 for x64-based Systems, Raw Image Extension on Windows 10 Version 1809 for 32-bit Systems, Raw Image Extension on Windows 10 Version 1809 for ARM64-based Systems, Raw Image Extension on Windows 10 Version 1809 for HoloLens, Raw Image Extension on Windows 10 Version 1809 for x64-based Systems, Raw Image Extension on Windows 10 Version 1909 for 32-bit Systems, Raw Image Extension on Windows 10 Version 1909 for ARM64-based Systems, Raw Image Extension on Windows 10 Version 1909 for x64-based Systems, Raw Image Extension on Windows 10 Version 20H2 for 32-bit Systems, Raw Image Extension on Windows 10 Version 20H2 for ARM64-based Systems, Raw Image Extension on Windows 10 Version 21H1 for 32-bit Systems, Raw Image Extension on Windows 10 Version 21H1 for ARM64-based Systems, Raw Image Extension on Windows 10 Version 21H1 for x64-based Systems, Raw Image Extension on Windows 10 Version 21H2 for 32-bit Systems, Raw Image Extension on Windows 10 Version 21H2 for ARM64-based Systems, Raw Image Extension on Windows 10 Version 21H2 for x64-based Systems, Raw Image Extension on Windows 11 version 21H2 for ARM64-based Systems, Raw Image Extension on Windows 11 version 21H2 for x64-based Systems, Raw Image Extension on Windows 11 version 26H2, Raw Image Extension on Windows 11 Version 26H2 for ARM64-based Systems, Raw Image Extension on Windows 11 Version 26H2 for x64-based Systems
Updates that fix it: No KB listed
CISA KEV: Not listed in the collected catalog
EPSS: Not scored
Public exploit code: No Nuclei template listed
Published: 13 Oct 2026 07:00 UTC
Last revised: 13 Oct 2026 07:00 UTC
Revision note: Information published.

Recorded links

Source evidence when recorded

Microsoft security releases: Complete at observationRead 18 Oct 2026 at 14:53 UTC
CISA KEV: Complete at observationRead 18 Oct 2026 at 14:53 UTC
FIRST EPSS: Complete at observationRead 18 Oct 2026 at 14:53 UTC
Public detection templates (Nuclei): Complete at observationRead 18 Oct 2026 at 14:53 UTC

Coverage describes the sources at this observation. A complete read then does not establish their current position.

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Field-level log (1)

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18 Oct 2026 · 14:54:30 UTC Link: October 2026/security?release=2026-Oct#cves