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TI-2023-00618 Aliases CVE-2023-0652

Local Privilege Escalation in Cloudflare WARP Installer (Windows)

Priority LOW 36CWE-59Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

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

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00289 21st 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 2022.5.309.0—No fix listedCNA
  • WARP VendorCloudflare Affected up to 2022.5.309.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cloudflare:warp:*:*:*:*:*:windows:*:*before 2023.3.381.0VulnerableCloudflare
  • cpe:2.3:a:cloudflare:warp:*:*:*:*:*:windows:*:* Versions before 2023.3.381.0 Vulnerable ·Cloudflare

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-0652

References

Advisory 1

Other 2

  • TI-2022-04046 support_uri validation missing in WARP client for Windows CVSS 3.1HIGH 8.9
  • 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
See all 15 →

Sources

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