# CVE-2026-70044: Microsoft Windows Media Foundation out-of-bounds read

Source: https://junglewise.ai/threats/cve-2026-70044-out-of-bounds-read-in-microsoft-windows-media-foundation-allows  
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-2026-70044 · Severity: medium · CVSS 5.5 · Published 2026-10-13

Windows Media Foundation is a core Windows component that handles video and audio playback. An out-of-bounds memory read vulnerability allows a local attacker to read sensitive information from the system without authorization. This could expose data such as encryption keys, passwords, or other sensitive information stored in adjacent memory.

Technologies: [Microsoft Windows Media Foundation](https://junglewise.ai/threats/technologies/windows-media-foundation). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-70044 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-70044 being exploited in the wild.

**How severe is CVE-2026-70044?** Medium severity, with a CVSS score of 5.5, published 13 October 2026.

**Which products and versions are affected?** Microsoft Windows Media Foundation.

**Is there a fix for CVE-2026-70044?** 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-2026-70044 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-70044?** Check whether you run Microsoft Windows Media Foundation. 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 an out-of-bounds read in Windows Media Foundation that allows local code execution to access memory regions outside allocated buffers. It requires local access to trigger and enables disclosure of sensitive data. The flaw is in memory access validation within the Media Foundation framework.

## Affected products

- Microsoft Windows Media Foundation

## Timeline

- 2026-10-13: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70044](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70044)

## Related threats

- [Microsoft Windows Media Foundation heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-96157-heap-based-buffer-overflow-in-microsoft-windows-media-foundation)
- [Microsoft Windows Media Foundation heap buffer overflow](https://junglewise.ai/threats/cve-2026-122168-heap-based-buffer-overflow-in-microsoft-windows-media-foundation)
- [Microsoft Windows Media Foundation privilege escalation via deserialization](https://junglewise.ai/threats/cve-2026-96186-deserialization-of-untrusted-data-in-microsoft-windows-media)
- [Microsoft Windows Media Foundation heap overflow](https://junglewise.ai/threats/cve-2026-83517-heap-based-buffer-overflow-in-microsoft-windows-media-foundation)
- [Microsoft Windows Media Foundation heap buffer overflow](https://junglewise.ai/threats/cve-2026-69601-microsoft-windows-media-foundation-heap-buffer-overflow)