CVE-2022-3320

Local policy bypass via unrestricted custom endpoint command

Published Oct 28, 2022 · Updated May 5, 2025

Missing authorization in affected Cloudflare WARP releases allows local users to bypass Zero Trust Secure Web Gateway policies. The warp-cli set-custom-endpoint command accepts an unreachable endpoint without enforcing administrative restrictions, disconnecting the client from Cloudflare and removing policy enforcement. Exploitation requires command access on a Zero Trust-enrolled endpoint; Windows before 2022.8.857.0, macOS before 2022.8.861.0, and Linux before 2022.8.936 are affected.

CVSS severity6.7
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in affected Cloudflare WARP releases allows local users to bypass Zero Trust Secure Web Gateway policies. The warp-cli set-custom-endpoint command accepts an unreachable endpoint without enforcing administrative restrictions, disconnecting the client from Cloudflare and removing policy enforcement. Exploitation requires command access on a Zero Trust-enrolled endpoint; Windows before 2022.8.857.0, macOS before 2022.8.861.0, and Linux before 2022.8.936 are affected.

The record

CVE
CVE-2022-3320
Published
Oct 28, 2022
Updated
May 5, 2025
Vendor
Cloudflare
Product
Cloudflare WARP
Classifications
CWE-862, T1562.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 28, 2022CVE publishedPublication date reported by the CVE source.
  2. May 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2022.8.857.0
  2. Affected versionversion=0 <2022.8.861.0
  3. Affected versionversion=0 <2022.8.936

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Cloudflare · Cloudflare WARPversion=0 <2022.8.857.0; version=0 <2022.8.861.0; version=0 <2022.8.936

Published CVSS scores

6.7CloudflareCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:L
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1562.001Impair Defenses: Disable or Modify Tools

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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