# CVE-2026-73016: Microsoft Graphics Component heap buffer overflow

Source: https://junglewise.ai/threats/cve-2026-73016-microsoft-graphics-component-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-2026-73016 · Severity: high · CVSS 8.8 · Published 2026-09-08

Microsoft's Graphics Component, a core Windows library used for rendering and displaying images and graphics, contains a heap-based buffer overflow vulnerability. An attacker could exploit this flaw over the network without requiring authentication to execute arbitrary code with system-level privileges, potentially compromising the entire system.

Technologies: [Microsoft Graphics Component](https://junglewise.ai/threats/technologies/graphics-component). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-73016 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-73016 being exploited in the wild.

**How severe is CVE-2026-73016?** High severity, with a CVSS score of 8.8, published 8 September 2026.

**Which products and versions are affected?** Microsoft Graphics Component.

**Is there a fix for CVE-2026-73016?** 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-2026-73016 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-73016?** Check whether you run Microsoft Graphics Component. 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 exists in Microsoft Graphics Component that can be triggered remotely without authentication. The vulnerability allows an attacker to corrupt heap memory and achieve remote code execution (RCE) over the network. The vulnerability is not known to be exploited in the wild as of the publication date, but patches should be applied immediately given the high attack surface and critical nature of the Graphics Component.

## Affected products

- Microsoft Graphics Component

## Timeline

- 2026-09-08: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73016](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73016)

## Related threats

- [Microsoft Graphics Component out-of-bounds read](https://junglewise.ai/threats/cve-2026-112754-out-of-bounds-read-in-microsoft-graphics-component-allows-an)
- [Microsoft Graphics Component stack buffer overflow](https://junglewise.ai/threats/cve-2026-85881-stack-based-buffer-overflow-in-microsoft-graphics-component)
- [Microsoft Graphics Component out-of-bounds read privilege elevation](https://junglewise.ai/threats/cve-2026-85338-out-of-bounds-read-in-microsoft-graphics-component-allows-an)
- [Microsoft Graphics Component numeric truncation privilege escalation](https://junglewise.ai/threats/cve-2026-70123-numeric-truncation-error-in-microsoft-graphics-component-allows)
- [Microsoft Graphics Component information disclosure](https://junglewise.ai/threats/cve-2026-105731-use-of-uninitialized-resource-in-microsoft-graphics-component)