What is CVE-2022-3321?

CVE-2022-3321 is a medium-severity vulnerability in Cloudflare Warp, classified under Missing Authorization. CVSS score: 6.7/10. Published 2022-10-28.

How severe is CVE-2022-3321?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Auth bypass in Cloudflare Warp

CVE-2022-3321

It was possible to bypass Lock WARP switch feature https://developers.cloudflare.com/cloudflare-one/connections/connect-devices/warp/warp-settings/#lock-warp-switch on the WARP iOS mobile client by enabling both "Disable for cellular networks" and "Disable for Wi-Fi networks" switches at once in the application settings. Such configuration caused the WARP client to disconnect and allowed the user to bypass restrictions and policies enforced by the Zero Trust platform.

Vulnerability class: Broken Access Control

Published 2022-10-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:L.

EPSS exploit prediction

EPSS: 0.004 (31.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Cloudflare Warp — versions 0
Cloudflare Warp Mobile Client

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

github.com/cloudflare/advisories/security/advisories/GHSA-4463-5p9m-3c78 (Third Party Advisory)

Frequently asked questions

What is CVE-2022-3321?: CVE-2022-3321 is a medium-severity vulnerability in Cloudflare Warp, classified under Missing Authorization. CVSS score: 6.7/10. Published 2022-10-28.
How severe is CVE-2022-3321?: Medium severity. CVSS v3 base score is 6.7 out of 10.