CVE-2022-2145: Cloudlfare WARP Arbitrary File Overwrite

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-06-28 · updated 2026-06-17
Weakness: CWE-20

Description

Cloudflare WARP client for Windows (up to v. 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.

Affected products

Cloudflare WARP: before 2022.5.309.0 — fixed in 2022.5.309.0

How to fix

Upgrade to a fixed version: Cloudflare WARP 2022.5.309.0. Check the vendor advisory for mitigations.

References

https://github.com/cloudflare/advisories/security/advisories/GHSA-6fpc-qxmr-6wrq
https://github.com/cloudflare/advisories/security/advisories/GHSA-6fpc-qxmr-6wrq

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