# CVE-2026-33095: Microsoft Office Word use after free code execution

Source: https://junglewise.ai/threats/cve-2026-33095-microsoft-office-word-use-after-free-code-execution  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-14. Updated: 2026-07-25  
License: CC BY 4.0 with a link back

CVE-2026-33095 · Severity: high · CVSS 7.8 · Published 2026-04-14

A security vulnerability exists in Microsoft Word, the widely used word processing application. An attacker could exploit this flaw by tricking a user into opening a specially crafted document, potentially allowing the attacker to take control of the victim's computer. This could lead to the theft of sensitive information, unauthorized changes to files, or a complete system compromise.

Technologies: [Microsoft 365 Apps for Enterprise](https://junglewise.ai/threats/technologies/365-apps-for-enterprise), [Microsoft Office LTSC 2021](https://junglewise.ai/threats/technologies/office-ltsc-2021), [Microsoft Office LTSC 2024](https://junglewise.ai/threats/technologies/office-ltsc-2024), [Microsoft Office LTSC for Mac 2021](https://junglewise.ai/threats/technologies/office-ltsc-for-mac-2021), [Microsoft Office LTSC for Mac 2024](https://junglewise.ai/threats/technologies/office-ltsc-for-mac-2024). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-33095 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-33095 being exploited in the wild.

**How severe is CVE-2026-33095?** High severity, with a CVSS score of 7.8, published 14 April 2026.

**Which products and versions are affected?** Microsoft 365 Apps for Enterprise 16.0.1 and later versions prior to security updates; Microsoft Office LTSC 2021 16.0.1 and later versions prior to security updates; Microsoft Office LTSC 2024 16.0.0 and later versions prior to security updates; Microsoft Office LTSC for Mac 2021 versions prior to 16.108.26041219; and 1 more.

**Is there a fix for CVE-2026-33095?** 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-2026-33095 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2026-33095?** Check whether you run Microsoft 365 Apps for Enterprise, Microsoft Office LTSC 2021, Microsoft Office LTSC 2024 or one of the others listed at an affected version. 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 use-after-free vulnerability (CWE-416) exists in Microsoft Office Word. The flaw is triggered when the application attempts to access memory that has already been freed, typically during the processing of a maliciously crafted document. While the attack vector is classified as local, it requires user interaction (UI:R), meaning an attacker must persuade a user to open a compromised file. Successful exploitation allows for arbitrary code execution with the privileges of the logged-in user. Microsoft has released security updates to address this issue across various Office versions, including Microsoft 365 Apps and LTSC editions for both Windows and Mac.

## Affected products

- Microsoft 365 Apps for Enterprise 16.0.1 and later versions prior to security updates
- Microsoft Office LTSC 2021 16.0.1 and later versions prior to security updates
- Microsoft Office LTSC 2024 16.0.0 and later versions prior to security updates
- Microsoft Office LTSC for Mac 2021 versions prior to 16.108.26041219
- Microsoft Office LTSC for Mac 2024 versions prior to 16.108.26041219

## Timeline

- 2026-04-14: disclosed: Initial disclosure by Microsoft Corporation
- 2026-04-14: advisory: NVD published date

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33095](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33095)

## Related threats

- [Microsoft Office out-of-bounds read information disclosure](https://junglewise.ai/threats/cve-2026-56195-microsoft-office-out-of-bounds-read-information-disclosure)
- [Microsoft Office Out-of-bounds Read Information Disclosure](https://junglewise.ai/threats/cve-2026-56192-microsoft-office-out-of-bounds-read-information-disclosure)
- [Microsoft Office Excel heap buffer overflow](https://junglewise.ai/threats/cve-2026-56156-microsoft-office-excel-heap-buffer-overflow)
- [Microsoft Excel use of uninitialized resource code execution](https://junglewise.ai/threats/cve-2026-55949-microsoft-excel-use-of-uninitialized-resource-code-execution)
- [Microsoft Office Excel heap buffer overflow](https://junglewise.ai/threats/cve-2026-55947-microsoft-office-excel-heap-buffer-overflow)