CVE-2023-36672

MEDIUM

Clario VPN client <5.9.1.1662 - Info Disclosure

Title source: llm
STIX 2.1

Description

An issue was discovered in the Clario VPN client through 5.9.1.1662 for macOS. The VPN client insecurely configures the operating system such that traffic to the local network is sent in plaintext outside the VPN tunnel even if the local network is using a non-RFC1918 IP subnet. This allows an adversary to trick the victim into sending arbitrary IP traffic in plaintext outside the VPN tunnel. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to "LocalNet attack resulting in leakage of traffic in plaintext" rather than to only Clario.

Scores

CVSS v3 5.7
EPSS 0.0068
EPSS Percentile 47.5%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-319
Status published
Products (1)
clario/vpn < 5.9.1.1662
Published Aug 09, 2023
Tracked Since Feb 18, 2026