{"id":"CVE-2018-10731","aliases":["EUVD-2018-2801","GHSA-fwh4-47pw-jmg5"],"status":"published","title":"All Phoenix Contact managed FL SWITCH 3xxx, 4xxx, 48xx products running firmware version 1.0 to 1...","description":"All Phoenix Contact managed FL SWITCH 3xxx, 4xxx, 48xx products running firmware version 1.0 to 1.33 are prone to buffer overflows when handling very large cookies (a different vulnerability than CVE-2018-10728).","severity":{"version":"3.0","score":9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02645,"percentile":0.85704,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2018-05-17T19:00:00Z","modified":"2026-06-17T01:34:35Z","products":[{"vendor":"phoenixcontact","product":"fl_switch_3004t-fx_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3004t-fx_st_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3005_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3005t_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3006t-2fx_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3006t-2fx_sm_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3006t-2fx_st_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3008_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3008t_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3012e-2fx_sm_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3012e-2sfx_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3016_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3016e_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_3016t_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4000t-8poe-2sfp-r_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4008t-2gt-3fx_sm_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4008t-2gt-4fx_sm_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4008t-2sfp_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4012t-2gt-2fx_st_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4012t_2gt_2fx_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4800e-24fx-4gc_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4800e-24fx_sm-4gc_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4808e-16fx-4gc_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4808e-16fx_lc-4gc_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4808e-16fx_sm-4gc_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4808e-16fx_sm_lc-4gc_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4808e-16fx_sm_st-4gc_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4808e-16fx_st-4gc_firmware"},{"vendor":"phoenixcontact","product":"fl_switch_4824e-4gc_firmware"}],"references":[{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-137-02","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","US Government Resource"]},{"url":"https://cert.vde.com/de-de/advisories/vde-2018-007","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory"]},{"url":"http://www.securityfocus.com/bid/104231","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-10731"},{"url":"https://github.com/advisories/GHSA-fwh4-47pw-jmg5"}],"sources":{"cve":[{"id":"CVE-2018-10731","description":"All Phoenix Contact managed FL SWITCH 3xxx, 4xxx, 48xx products running firmware version 1.0 to 1.33 are prone to buffer overflows when handling very large cookies (a different vulnerability than CVE-2018-10728).","status":"published","published":"2018-05-17T19:00:00Z","modified":"2024-08-05T07:46:46.805Z","updated_at":"2026-11-02T14:35:01.619448Z"}],"euvd":[{"id":"EUVD-2018-2801","description":"All Phoenix Contact managed FL SWITCH 3xxx, 4xxx, 48xx products running firmware version 1.0 to 1.33 are prone to buffer overflows when handling very large cookies (a different vulnerability than CVE-2018-10728).","status":"published","published":"2018-05-17T19:00:00Z","modified":"2024-08-05T07:46:46Z","updated_at":"2026-11-03T02:39:58.002149Z"}],"ghsa":[{"id":"GHSA-fwh4-47pw-jmg5","title":"All Phoenix Contact managed FL SWITCH 3xxx, 4xxx, 48xx products running firmware version 1.0 to 1...","description":"All Phoenix Contact managed FL SWITCH 3xxx, 4xxx, 48xx products running firmware version 1.0 to 1.33 are prone to buffer overflows when handling very large cookies (a different vulnerability than CVE-2018-10728).","status":"published","published":"2022-05-14T03:17:17Z","modified":"2023-02-02T05:07:57Z","cvss":[{"version":"3.0","score":9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:52:37.555983Z"}],"nvd":[{"id":"CVE-2018-10731","description":"All Phoenix Contact managed FL SWITCH 3xxx, 4xxx, 48xx products running firmware version 1.0 to 1.33 are prone to buffer overflows when handling very large cookies (a different vulnerability than CVE-2018-10728).","status":"published","published":"2018-05-17T19:29:00.447Z","modified":"2026-06-17T01:34:35.407Z","cvss":[{"version":"3.0","score":9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:04:27.507872Z"}]}}