{"id":"CVE-2011-1978","aliases":["EUVD-2011-1972","GHSA-h6v3-p84j-v62f"],"status":"published","title":"Microsoft .NET Framework 2.0 SP2, 3.5.1, and 4 does not properly validate the System.Net.Sockets...","description":"Microsoft .NET Framework 2.0 SP2, 3.5.1, and 4 does not properly validate the System.Net.Sockets trust level, which allows remote attackers to obtain sensitive information or trigger arbitrary outbound network traffic via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka \"Socket Restriction Bypass Vulnerability.\"","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.2021,"percentile":0.97482,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2011-08-10T21:16:00Z","modified":"2026-06-16T23:30:32Z","products":[{"vendor":"microsoft","product":".net_framework"}],"references":[{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12901","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-069","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-1978"},{"url":"https://github.com/advisories/GHSA-h6v3-p84j-v62f"}],"sources":{"cve":[{"id":"CVE-2011-1978","description":"Microsoft .NET Framework 2.0 SP2, 3.5.1, and 4 does not properly validate the System.Net.Sockets trust level, which allows remote attackers to obtain sensitive information or trigger arbitrary outbound network traffic via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka \"Socket Restriction Bypass Vulnerability.\"","status":"published","published":"2011-08-10T21:16:00Z","modified":"2024-10-17T18:19:06.953Z","updated_at":"2026-11-02T14:35:38.711857Z"}],"euvd":[{"id":"EUVD-2011-1972","description":"Microsoft .NET Framework 2.0 SP2, 3.5.1, and 4 does not properly validate the System.Net.Sockets trust level, which allows remote attackers to obtain sensitive information or trigger arbitrary outbound network traffic via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka \"Socket Restriction Bypass Vulnerability.\"","status":"published","published":"2011-08-10T21:16:00Z","modified":"2024-10-17T18:19:06Z","updated_at":"2026-11-03T00:27:33.799805Z"}],"ghsa":[{"id":"GHSA-h6v3-p84j-v62f","title":"Microsoft .NET Framework 2.0 SP2, 3.5.1, and 4 does not properly validate the System.Net.Sockets...","description":"Microsoft .NET Framework 2.0 SP2, 3.5.1, and 4 does not properly validate the System.Net.Sockets trust level, which allows remote attackers to obtain sensitive information or trigger arbitrary outbound network traffic via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka \"Socket Restriction Bypass Vulnerability.\"","status":"published","published":"2022-05-13T01:15:33Z","modified":"2023-02-01T05:04:42Z","cwes":["CWE-200"],"updated_at":"2026-11-02T14:50:10.892175Z"}],"nvd":[{"id":"CVE-2011-1978","description":"Microsoft .NET Framework 2.0 SP2, 3.5.1, and 4 does not properly validate the System.Net.Sockets trust level, which allows remote attackers to obtain sensitive information or trigger arbitrary outbound network traffic via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka \"Socket Restriction Bypass Vulnerability.\"","status":"published","published":"2011-08-10T21:55:02.017Z","modified":"2026-06-16T23:30:32.357Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:02:09.182398Z"}]}}