{"id":"CVE-2016-4580","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-4580","generatedAt":"2026-10-27T17:43:05.765Z","title":"The x25_negotiate_facilities function in net/x25/x25_facilities.c in the Linux kernel before 4.5.5 does not properly initialize a certain data structure, which allows attackers to obtain sensitive information from kernel stack memory via an X.25 Call…","description":"The x25_negotiate_facilities function in net/x25/x25_facilities.c in the Linux kernel before 4.5.5 does not properly initialize a certain data structure, which allows attackers to obtain sensitive information from kernel stack memory via an X.25 Call Request.","published":"2016-05-23T10:59:10.000Z","lastModified":"2026-06-17T00:47:50.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-200"],"affected":["linux/linux kernel","canonical/ubuntu linux"],"epss":{"score":0.04065,"percentile":0.90596,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (4.06%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79e48650320e6fba48369fccf13fd045315b19b8","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2016/dsa-3607","source":"cve@mitre.org"},{"url":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5","source":"cve@mitre.org"},{"url":"http://www.openwall.com/lists/oss-security/2016/05/10/12","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/90528","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3016-1","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3016-2","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3016-3","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3016-4","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3017-1","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3017-2","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3017-3","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3018-1","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3018-2","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3019-1","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3020-1","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3021-1","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-3021-2","source":"cve@mitre.org"},{"url":"https://github.com/torvalds/linux/commit/79e48650320e6fba48369fccf13fd045315b19b8","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79e48650320e6fba48369fccf13fd045315b19b8","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2016/dsa-3607","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2016/05/10/12","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/90528","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3016-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3016-2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3016-3","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3016-4","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3017-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3017-2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3017-3","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3018-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3018-2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3019-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3020-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3021-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-3021-2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/79e48650320e6fba48369fccf13fd045315b19b8","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-4580","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}