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TI-2022-04046 Aliases CVE-2022-4428

support_uri validation missing in WARP client for Windows

Priority MEDIUM 42CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

support_uri parameter in the WARP client local settings file (mdm.xml) lacked proper validation which allowed for privilege escalation and launching an arbitrary executable on the local machine upon clicking on the "Send feedback" option. An attacker with access to the local file system could use a crafted XML config file pointing to a malicious file or set a local path to the executable using Cloudflare Zero Trust Dashboard (for Zero Trust enrolled clients).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00714 53rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CloudflareWARPup to 2022.10.106.0—No fix listedCNA
  • WARP VendorCloudflare Affected up to 2022.10.106.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cloudflare:warp:*:*:*:*:*:windows:*:*up to 2022.10.106.0VulnerableCloudflare
  • cpe:2.3:a:cloudflare:warp:*:*:*:*:*:windows:*:* Versions up to 2022.10.106.0 Vulnerable ·Cloudflare

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-4428

References

Advisory 1

  • TI-2022-03068 Bypassing Cloudflare Zero Trust policies using warp-cli set-custom-endpoint command CVSS 3.1CRITICAL 9.8
  • TI-2023-01749 Remote access to warp-svc.exe in Cloudflare WARP CVSS 3.1HIGH 7.3
  • TI-2022-03240 Lock WARP switch bypass using warp-cli 'add-trusted-ssid' command CVSS 3.1HIGH 8.8
  • TI-2023-02579 Plaintext transmission of DNS requests in Windows 1.1.1.1 WARP client CVSS 3.1HIGH 7.4
  • TI-2023-01335 Local Privilege Escalation Vulnerability in WARP's MSI Installer CVSS 3.1HIGH 7.8
  • TI-2023-00618 Local Privilege Escalation in Cloudflare WARP Installer (Windows) CVSS 3.1HIGH 7.8
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences