# CVE-2026-83725: Microsoft Windows Search Component heap buffer overflow

Source: https://junglewise.ai/threats/cve-2026-83725-heap-based-buffer-overflow-in-microsoft-windows-search-component  
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-2026-83725 · Severity: high · CVSS 8.8 · Published 2026-10-13

A heap-based buffer overflow vulnerability in Microsoft Windows Search Component allows a remote attacker to execute arbitrary code on a system over the network. An attacker could exploit this to gain full system control, install malware, or access sensitive data stored on the affected machine.

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

## Quick answers

**Is CVE-2026-83725 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-83725 being exploited in the wild.

**How severe is CVE-2026-83725?** High severity, with a CVSS score of 8.8, published 13 October 2026.

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

**Is there a fix for CVE-2026-83725?** 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-2026-83725 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-83725?** Check whether you run Microsoft Windows Search 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 in the Windows Search Component can be triggered over the network, allowing remote code execution without prior authentication. The vulnerability exists in memory management of the search component, enabling an attacker to overwrite heap memory and redirect execution flow to arbitrary code.

## Affected products

- Microsoft Windows Search Component

## Timeline

- 2026-10-13: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83725](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83725)

## Related threats

- [Microsoft Windows Search Component absolute path traversal](https://junglewise.ai/threats/cve-2026-119954-absolute-path-traversal-in-microsoft-windows-search-component)
- [Microsoft Windows Search Component buffer over-read privilege escalation](https://junglewise.ai/threats/cve-2026-119943-buffer-over-read-in-microsoft-windows-search-component-allows-an)
- [Microsoft Windows Search Component symlink privilege escalation](https://junglewise.ai/threats/cve-2026-96911-improper-link-resolution-before-file-access-link-following-in)
- [Microsoft Windows Search Component heap-based buffer overflow](https://junglewise.ai/threats/cve-2026-85869-heap-based-buffer-overflow-in-microsoft-windows-search-component)
- [Microsoft Windows Search Component link following privilege elevation](https://junglewise.ai/threats/cve-2026-83704-improper-link-resolution-before-file-access-link-following-in)