{"cve":"CVE-2023-36672","nvd":{"published":"2023-08-09T23:15:10.823","modified":"2026-06-17T06:06:48.390","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","score":5.7},"cwes":["CWE-319"],"references":["https://clario.co/vpn-for-mac/","https://mullvad.net/de/blog/2023/8/9/response-to-tunnelcrack-vulnerability-disclosure/","https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015","https://tunnelcrack.mathyvanhoef.com/details.html","https://clario.co/vpn-for-mac/"],"products":["clario:vpn"],"source":"nvd","synced_at":"2026-10-19T21:39:14.809778102+00:00"},"epss":{"cve":"CVE-2023-36672","score":0.00541,"percentile":0.45485,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}