CVE-2023-35838

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Source
https://cve.org/CVERecord?id=CVE-2023-35838
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-35838.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-35838
Aliases
Downstream
Published
2023-08-09T00:00:00Z
Modified
2026-07-15T01:49:01.039192245Z
Summary
[none]
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/35xxx/CVE-2023-35838.json",
    "cna_assigner": "mitre"
}
References

Affected packages

Git / github.com/wireguard/wireguard-windows

Affected ranges

Type
GIT
Repo
https://github.com/wireguard/wireguard-windows
Events
Introduced
28e903804aa1302b791c24093dd7f42f0c7d0952
Last affected
28e903804aa1302b791c24093dd7f42f0c7d0952
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0.5.3"
        },
        {
            "last_affected": "0.5.3"
        }
    ],
    "source": "CPE_STRING",
    "cpe": "cpe:2.3:a:wireguard:wireguard:0.5.3:*:*:*:*:*:*:*"
}

Affected versions

0.*
0.5.3
v0.*
v0.5.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-35838.json"