{"id":"CVE-2023-35838","state":"PUBLISHED","title":"The WireGuard client 0.5.3 on Windows insecurely configures the operating system and firewall such that traffic to a local network that uses non-RFC1918 IP addresses is blocked. Th","description":"The WireGuard client 0.5.3 on Windows insecurely configures the operating system and firewall such that traffic to a local network that uses non-RFC1918 IP addresses is blocked. This allows an adversary to trick the victim into blocking IP traffic to selected IP addresses and services even while the VPN is enabled. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to \"LocalNet attack resulting in the blocking of traffic\" rather than to only WireGuard.","publishedAt":"2023-08-09T00:00:00.000Z","updatedAt":"2024-10-18T19:02:08.462Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://wireguard.com","https://tunnelcrack.mathyvanhoef.com/details.html","https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:00.499Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/35xxx/CVE-2023-35838.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-35838","state":"PUBLISHED","datePublished":"2023-08-09T00:00:00.000Z","dateUpdated":"2024-10-18T19:02:08.462Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2023-06-18T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"The WireGuard client 0.5.3 on Windows insecurely configures the operating system and firewall such that traffic to a local network that uses non-RFC1918 IP addresses is blocked. This allows an adversary to trick the victim into blocking IP traffic to selected IP addresses and services even while the VPN is enabled. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to \"LocalNet attack resulting in the blocking of traffic\" rather than to only WireGuard."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://wireguard.com"},{"url":"https://tunnelcrack.mathyvanhoef.com/details.html"},{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015"}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2023-10-31T08:06:29.358Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://wireguard.com","tags":["x_transferred"]},{"url":"https://tunnelcrack.mathyvanhoef.com/details.html","tags":["x_transferred"]},{"url":"https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T16:30:45.371Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-10-18T19:01:55.378972Z","id":"CVE-2023-35838","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-10-18T19:02:08.462Z"}}]}}}