# CVE-2023-36563: Microsoft WordPad Information Disclosure Vulnerability

Source: https://junglewise.ai/threats/cve-2023-36563-microsoft-wordpad-information-disclosure-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-10-10. Updated: 2026-05-09  
License: CC BY 4.0 with a link back

CVE-2023-36563 · Severity: critical · CVSS 6.5 · Exploited in the wild · Published 2023-10-10

Microsoft WordPad contains an information disclosure vulnerability that can lead to the leakage of NTLM hashes. An attacker can exploit this by inducing a user to open a specially crafted file, potentially leading to further credential-based attacks.

Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2023-36563 exploited in the wild?** Yes. CVE-2023-36563 is known to be exploited in the wild, first recorded on 10 October 2023. Treat it as urgent.

**How severe is CVE-2023-36563?** Critical severity, with a CVSS score of 6.5, published 10 October 2023.

**Which products and versions are affected?** Microsoft Windows 10 1507, 1607, 1809, 21H2, 22H2; Microsoft Windows 11 21H2, 22H2; Microsoft Windows Server 2008, 2008 R2, 2012, 2012 R2, 2016, 2019, 2022; Microsoft WordPad.

**Is there a fix for CVE-2023-36563?** A patch was published on 2023-10-10. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2023-36563 attacked?** It is attacked over the network or with local access, in an operating system.

**Am I affected by CVE-2023-36563?** Check whether you run Microsoft WordPad. 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.

## Affected products

- Microsoft Windows 10 1507, 1607, 1809, 21H2, 22H2
- Microsoft Windows 11 21H2, 22H2
- Microsoft Windows Server 2008, 2008 R2, 2012, 2012 R2, 2016, 2019, 2022
- Microsoft WordPad

## Timeline

- 2023-10-10: disclosed
- 2023-10-10: patched
- 2023-10-10: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2023-10-10: exploited: Reported as exploited in the wild at time of publication.

## Related threats

- [Microsoft Office and WordPad Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2017-0199-microsoft-office-and-wordpad-remote-code-execution-vulnerability)