{"id":"CVE-2011-2480","aliases":["EUVD-2011-2469","GHSA-44jh-wjf8-4jgx"],"status":"published","title":"Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and...","description":"Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and NetBSD when using certain non-x86 architectures. A signedness error in the IEEE80211_IOC_CHANINFO ioctl allows a local unprivileged user to cause the kernel to copy large amounts of kernel memory back to the user, disclosing potentially sensitive information.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-06","score":0.01592,"percentile":0.75795,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2019-11-27T18:53:37Z","modified":"2026-06-16T23:31:25Z","products":[{"vendor":"freebsd","product":"freebsd"},{"vendor":"freebsd, netbsd","product":"freebsd"},{"vendor":"freebsd, netbsd","product":"netbsd"},{"vendor":"netbsd","product":"netbsd"}],"references":[{"url":"https://security-tracker.debian.org/tracker/CVE-2011-2480","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://access.redhat.com/security/cve/cve-2011-2480","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=631161","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=631160","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.openwall.com/lists/oss-security/2011/06/20/15","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-2480"},{"url":"https://github.com/advisories/GHSA-44jh-wjf8-4jgx"}],"sources":{"cve":[{"id":"CVE-2011-2480","description":"Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and NetBSD when using certain non-x86 architectures. A signedness error in the IEEE80211_IOC_CHANINFO ioctl allows a local unprivileged user to cause the kernel to copy large amounts of kernel memory back to the user, disclosing potentially sensitive information.","status":"published","published":"2019-11-27T18:53:37Z","modified":"2024-08-06T23:00:33.992Z","updated_at":"2026-11-02T14:35:36.603688Z"}],"euvd":[{"id":"EUVD-2011-2469","description":"Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and NetBSD when using certain non-x86 architectures. A signedness error in the IEEE80211_IOC_CHANINFO ioctl allows a local unprivileged user to cause the kernel to copy large amounts of kernel memory back to the user, disclosing potentially sensitive information.","status":"published","published":"2019-11-27T18:53:37Z","modified":"2024-08-06T23:00:33Z","updated_at":"2026-11-03T01:39:55.659728Z"}],"ghsa":[{"id":"GHSA-44jh-wjf8-4jgx","title":"Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and...","description":"Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and NetBSD when using certain non-x86 architectures. A signedness error in the IEEE80211_IOC_CHANINFO ioctl allows a local unprivileged user to cause the kernel to copy large amounts of kernel memory back to the user, disclosing potentially sensitive information.","status":"published","published":"2022-04-22T00:24:19Z","modified":"2023-01-27T05:01:56Z","updated_at":"2026-11-02T14:41:59.335185Z"}],"nvd":[{"id":"CVE-2011-2480","description":"Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and NetBSD when using certain non-x86 architectures. A signedness error in the IEEE80211_IOC_CHANINFO ioctl allows a local unprivileged user to cause the kernel to copy large amounts of kernel memory back to the user, disclosing potentially sensitive information.","status":"published","published":"2019-11-27T19:15:11.603Z","modified":"2026-06-16T23:31:25.337Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:02:12.945371Z"}]}}