# CVE-2026-95874: Microsoft Xbox heap-based buffer overflow

Source: https://junglewise.ai/threats/cve-2026-95874-heap-based-buffer-overflow-in-xbox-allows-an-authorized-attacker  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-95874 · Severity: high · CVSS 7.8 · Published 2026-11-10

A heap-based buffer overflow vulnerability in Xbox allows an authorized user to execute code with elevated privileges on the device. This could lead to a malicious user gaining full control of the Xbox console, potentially accessing stored data, modifying system settings, or launching further attacks on the home network.

Technologies: [Microsoft Xbox](https://junglewise.ai/threats/technologies/xbox). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-95874 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-95874 being exploited in the wild.

**How severe is CVE-2026-95874?** High severity, with a CVSS score of 7.8, published 10 November 2026.

**Which products and versions are affected?** Microsoft Xbox.

**Is there a fix for CVE-2026-95874?** 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-2026-95874 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-95874?** Check whether you run Microsoft Xbox. 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

A heap-based buffer overflow in Xbox permits privilege escalation when exploited by an already-authenticated attacker with local access. The vulnerability allows writing to heap memory beyond allocated bounds, enabling arbitrary code execution with elevated privileges. No public exploits in the wild have been confirmed at this time.

## Affected products

- Microsoft Xbox

## Timeline

- 2026-11-10: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-95874](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-95874)

## Related threats

- [Microsoft Xbox heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-66801-heap-based-buffer-overflow-in-xbox-allows-an-unauthorized)
- [Microsoft Xbox out-of-bounds read in hardware interface](https://junglewise.ai/threats/cve-2026-78455-microsoft-xbox-out-of-bounds-read-in-hardware-interface)