# CVE-2026-83992: Microsoft Windows Imaging Component heap buffer overflow

Source: https://junglewise.ai/threats/cve-2026-83992-microsoft-windows-imaging-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-2026-83992 · Severity: high · CVSS 8.8 · Published 2026-09-08

Windows Imaging Component is a core Windows system library used to process and display image files. A heap buffer overflow vulnerability allows attackers to execute arbitrary code on affected systems over a network, potentially compromising the entire machine, stealing data, or installing malware.

Technologies: [Microsoft Windows Imaging Component](https://junglewise.ai/threats/technologies/windows-imaging-component). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-83992 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83992 being exploited in the wild.

**How severe is CVE-2026-83992?** High severity, with a CVSS score of 8.8, published 8 September 2026.

**Which products and versions are affected?** Microsoft Windows Imaging Component.

**Is there a fix for CVE-2026-83992?** 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-2026-83992 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-83992?** Check whether you run Microsoft Windows Imaging 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's Windows Imaging Component, likely triggered during image file parsing or processing. The vulnerability is network-reachable, allowing an unauthenticated attacker to trigger the overflow via a specially crafted image file or network request. Successful exploitation results in arbitrary code execution with the privileges of the user or application processing the image. This represents a critical attack vector since image processing often occurs automatically or through user-accessible features.

## Affected products

- Microsoft Windows Imaging Component

## Timeline

- 2026-09-08: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83992](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83992)

## Related threats

- [Windows Imaging Component heap overflow allows network code execution](https://junglewise.ai/threats/cve-2026-96164-heap-based-buffer-overflow-in-windows-imaging-component-allows-an)
- [Windows Imaging Component out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-96859-out-of-bounds-read-in-windows-imaging-component-allows-an)
- [Windows Imaging Component heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-77496-heap-based-buffer-overflow-in-windows-imaging-component-allows-an)
- [Windows Imaging Component heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-69886-heap-based-buffer-overflow-in-windows-imaging-component-allows-an)
- [Microsoft Windows Imaging Component heap buffer overflow](https://junglewise.ai/threats/cve-2026-77495-microsoft-windows-imaging-component-heap-buffer-overflow)