{"id":"CVE-2018-5500","aliases":["EUVD-2018-17269","GHSA-6jjh-35m4-xm42"],"status":"published","title":"On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, every Multipath TCP ...","description":"On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, every Multipath TCP (MCTCP) connection established leaks a small amount of memory. Virtual server using TCP profile with Multipath TCP (MCTCP) feature enabled will be affected by this issue.","severity":{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01344,"percentile":0.71561,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400"],"published":"2018-03-01T16:00:00Z","modified":"2026-06-17T02:00:25Z","products":[{"vendor":"f5","product":"big-ip_access_policy_manager"},{"vendor":"f5","product":"big-ip_advanced_firewall_manager"},{"vendor":"f5","product":"big-ip_analytics"},{"vendor":"f5","product":"big-ip_application_acceleration_manager"},{"vendor":"f5","product":"big-ip_application_security_manager"},{"vendor":"f5","product":"big-ip_dns"},{"vendor":"f5","product":"big-ip_edge_gateway"},{"vendor":"f5","product":"big-ip_global_traffic_manager"},{"vendor":"f5","product":"big-ip_link_controller"},{"vendor":"f5","product":"big-ip_local_traffic_manager"},{"vendor":"f5","product":"big-ip_policy_enforcement_manager"},{"vendor":"f5","product":"big-ip_webaccelerator"},{"vendor":"f5","product":"big-ip_websafe"},{"vendor":"f5 networks, inc.","product":"big-ip ltm, aam, afm, analytics, apm, asm, dns, edge gateway, gtm, link controller, pem, webaccelerator, websafe"}],"references":[{"url":"https://support.f5.com/csp/article/K33211839","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/103217","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-5500"},{"url":"https://github.com/advisories/GHSA-6jjh-35m4-xm42"}],"sources":{"cve":[{"id":"CVE-2018-5500","description":"On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, every Multipath TCP (MCTCP) connection established leaks a small amount of memory. Virtual server using TCP profile with Multipath TCP (MCTCP) feature enabled will be affected by this issue.","status":"published","published":"2018-03-01T16:00:00Z","modified":"2024-09-16T20:41:38.281Z","updated_at":"2026-11-02T14:35:00.948726Z"}],"euvd":[{"id":"EUVD-2018-17269","description":"On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, every Multipath TCP (MCTCP) connection established leaks a small amount of memory. Virtual server using TCP profile with Multipath TCP (MCTCP) feature enabled will be affected by this issue.","status":"published","published":"2018-03-01T16:00:00Z","modified":"2024-09-16T20:41:38Z","updated_at":"2026-11-03T00:55:11.71058Z"}],"ghsa":[{"id":"GHSA-6jjh-35m4-xm42","title":"On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, every Multipath TCP ...","description":"On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, every Multipath TCP (MCTCP) connection established leaks a small amount of memory. Virtual server using TCP profile with Multipath TCP (MCTCP) feature enabled will be affected by this issue.","status":"published","published":"2022-05-14T03:35:56Z","modified":"2023-02-02T05:08:08Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:52:40.925332Z"}],"nvd":[{"id":"CVE-2018-5500","description":"On F5 BIG-IP systems running 13.0.0, 12.1.0 - 12.1.3.1, or 11.6.1 - 11.6.2, every Multipath TCP (MCTCP) connection established leaks a small amount of memory. Virtual server using TCP profile with Multipath TCP (MCTCP) feature enabled will be affected by this issue.","status":"published","published":"2018-03-01T16:29:00.337Z","modified":"2026-06-17T02:00:25.207Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:04:23.783914Z"}]}}