VULNERABILITY INTELLIGENCE

CVE-2023-2754

CVSS score7.4 HIGH
EPSS probability0.92%
CISA KEVNot currently listed
Published2023-08-03
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Description

The Cloudflare WARP client for Windows assigns loopback IPv4 addresses for the DNS Servers, since WARP acts as local DNS server that performs DNS queries in a secure manner, however, if a user is connected to WARP over an IPv6-capable network, te WARP client did not assign loopback IPv6 addresses but Unique Local Addresses, which under certain conditions could point towards unknown devices in the same local network which enables an Attacker to view DNS queries made by the device.

Weakness classification

  • cna@cloudflare.com: CWE-319
  • nvd@nist.gov: CWE-319

Primary references