# CVE-2026-69649: Microsoft Windows Raw Image Extension heap buffer overflow

Source: https://junglewise.ai/threats/cve-2026-69649-microsoft-windows-raw-image-extension-heap-buffer-overflow  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-08. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-69649 · Severity: high · CVSS 8.8 · Published 2026-09-08

Windows Raw Image Extension, a Microsoft utility for processing raw image files, contains a heap-based buffer overflow vulnerability that could allow a remote attacker to execute arbitrary code by sending a specially crafted file or network request. Exploitation could lead to complete system compromise, unauthorized access to sensitive data, or deployment of malware.

Technologies: [Microsoft Windows Raw Image Extension](https://junglewise.ai/threats/technologies/windows-raw-image-extension). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-69649 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69649 being exploited in the wild.

**How severe is CVE-2026-69649?** High severity, with a CVSS score of 8.8, published 8 September 2026.

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

**Is there a fix for CVE-2026-69649?** 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-2026-69649 attacked?** It is attacked over the network, in an operating system.

**Am I affected by CVE-2026-69649?** Check whether you run Microsoft Windows Raw Image Extension at an affected version. 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

The vulnerability is a heap-based buffer overflow in Microsoft's Windows Raw Image Extension. The flaw allows remote code execution over the network without requiring authentication or user interaction beyond opening a malicious file. An attacker can craft a malicious raw image file or network payload that triggers the buffer overflow, gaining the ability to execute arbitrary code in the context of the affected application or system. A patch is expected to be available from Microsoft through their Security Update Guide.

## Affected products

- Microsoft Windows Raw Image Extension <UNKNOWN>

## Timeline

- 2026-09-08: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69649](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69649)

## 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)
- [Microsoft Windows Raw Image Extension integer overflow](https://junglewise.ai/threats/cve-2026-96943-integer-overflow-or-wraparound-in-windows-raw-image-extension)
- [Windows Raw Image Extension heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-96202-heap-based-buffer-overflow-in-windows-raw-image-extension-allows)