# CVE-2026-96943: Microsoft Windows Raw Image Extension integer overflow

Source: https://junglewise.ai/threats/cve-2026-96943-integer-overflow-or-wraparound-in-windows-raw-image-extension  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-96943 · Severity: high · CVSS 8.8 · Published 2026-10-13

Windows Raw Image Extension, a Windows component for handling raw image files, contains an integer overflow vulnerability that can be exploited remotely to execute arbitrary code. An attacker could deliver a malicious raw image file over the network to compromise a system and gain full control.

Technologies: [Microsoft Windows Raw Image Extension](https://junglewise.ai/threats/technologies/windows-raw-image-extension), [Microsoft Windows 10 1607](https://junglewise.ai/threats/technologies/windows-10-1607), [Microsoft Windows 10 1809](https://junglewise.ai/threats/technologies/windows-10-1809), [Microsoft Windows 10 21h2](https://junglewise.ai/threats/technologies/windows-10-21h2), [Microsoft Windows 11 21h2](https://junglewise.ai/threats/technologies/windows-11-21h2), [Microsoft Windows 11 26h2](https://junglewise.ai/threats/technologies/windows-11-26h2). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-96943 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-96943 being exploited in the wild.

**How severe is CVE-2026-96943?** High severity, with a CVSS score of 8.8, published 13 October 2026.

**Which products and versions are affected?** Microsoft Windows Raw Image Extension.

**Is there a fix for CVE-2026-96943?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-96943 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-96943?** Check whether you run Microsoft Raw Image Extension, Microsoft Windows Raw Image Extension, Microsoft Windows 10 1507 or one of the others listed. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An integer overflow or wraparound flaw in Windows Raw Image Extension permits remote code execution without requiring prior authentication or user interaction beyond opening a malicious image file. The vulnerability allows an attacker to trigger memory corruption and execute arbitrary code in the context of the application processing the image.

## Affected products

- Microsoft Windows Raw Image Extension

## Timeline

- 2026-10-13: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96943](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96943)

## Related threats

- [Windows Raw Image Extension heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-114169-heap-based-buffer-overflow-in-windows-raw-image-extension-allows)
- [Windows Raw Image Extension buffer over-read](https://junglewise.ai/threats/cve-2026-114166-buffer-over-read-in-windows-raw-image-extension-allows-an)
- [Windows DNS Server out-of-bounds read](https://junglewise.ai/threats/cve-2026-97844-out-of-bounds-read-in-dns-server-allows-an-authorized-attacker-to)
- [Windows DNS Server out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-97843-out-of-bounds-read-in-dns-server-allows-an-authorized-attacker-to)
- [Windows DNS Server out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-97842-out-of-bounds-read-in-dns-server-allows-an-authorized-attacker-to)