{"id":"CVE-2011-2012","aliases":["EUVD-2011-2006","GHSA-9q92-w4h6-42xf"],"status":"published","title":"Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not...","description":"Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not properly validate session cookies, which allows remote attackers to cause a denial of service (IIS outage) via unspecified network traffic, aka \"Null Session Cookie Crash.\"","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.16588,"percentile":0.9703,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2011-10-12T01:00:00Z","modified":"2026-06-16T23:30:36Z","products":[{"vendor":"microsoft","product":"forefront_unified_access_gateway"}],"references":[{"url":"http://www.securityfocus.com/bid/49980","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-079","tags":["vendor-advisory","x_refsource_MS","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12799","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-2012"},{"url":"https://github.com/advisories/GHSA-9q92-w4h6-42xf"}],"sources":{"cve":[{"id":"CVE-2011-2012","description":"Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not properly validate session cookies, which allows remote attackers to cause a denial of service (IIS outage) via unspecified network traffic, aka \"Null Session Cookie Crash.\"","status":"published","published":"2011-10-12T01:00:00Z","modified":"2024-08-06T22:46:00.92Z","updated_at":"2026-11-02T14:35:36.603688Z"}],"euvd":[{"id":"EUVD-2011-2006","description":"Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not properly validate session cookies, which allows remote attackers to cause a denial of service (IIS outage) via unspecified network traffic, aka \"Null Session Cookie Crash.\"","status":"published","published":"2011-10-12T01:00:00Z","modified":"2024-08-06T22:46:00Z","updated_at":"2026-11-03T01:55:54.133107Z"}],"ghsa":[{"id":"GHSA-9q92-w4h6-42xf","title":"Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not...","description":"Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not properly validate session cookies, which allows remote attackers to cause a denial of service (IIS outage) via unspecified network traffic, aka \"Null Session Cookie Crash.\"","status":"published","published":"2022-05-14T02:35:30Z","modified":"2023-02-02T05:05:52Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:52:11.741214Z"}],"nvd":[{"id":"CVE-2011-2012","description":"Microsoft Forefront Unified Access Gateway (UAG) 2010 Gold, Update 1, Update 2, and SP1 does not properly validate session cookies, which allows remote attackers to cause a denial of service (IIS outage) via unspecified network traffic, aka \"Null Session Cookie Crash.\"","status":"published","published":"2011-10-12T02:52:44.08Z","modified":"2026-06-16T23:30:36.063Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:10.769216Z"}]}}