{"id":"CVE-2021-25669","aliases":["EUVD-2021-12561","GHSA-2956-2v8q-xc52"],"status":"published","title":"A vulnerability has been identified in SCALANCE X200-4P IRT (All versions \u003c 5.5.1), SCALANCE X201...","description":"A vulnerability has been identified in SCALANCE X200-4P IRT (All versions \u003c 5.5.1), SCALANCE X201-3P IRT (All versions \u003c 5.5.1), SCALANCE X201-3P IRT PRO (All versions \u003c 5.5.1), SCALANCE X202-2 IRT (All versions \u003c 5.5.1), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All versions \u003c 5.5.1), SCALANCE X202-2P IRT PRO (All versions \u003c 5.5.1), SCALANCE X204 IRT (All versions \u003c 5.5.1), SCALANCE X204 IRT PRO (All versions \u003c 5.5.1), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X204-2FM (All versions \u003c V5.2.5), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X204-2LD TS (All versions \u003c V5.2.5), SCALANCE X204-2TS (All versions \u003c V5.2.5), SCALANCE X206-1 (All versions \u003c V5.2.5), SCALANCE X206-1LD (All versions \u003c V5.2.5), SCALANCE X208 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X208PRO (All versions \u003c V5.2.5), SCALANCE X212-2 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X212-2LD (All versions \u003c V5.2.5), SCALANCE X216 (All versions \u003c V5.2.5), SCALANCE X224 (All versions \u003c V5.2.5), SCALANCE XF201-3P IRT (All versions \u003c 5.5.1), SCALANCE XF202-2P IRT (All versions \u003c 5.5.1), SCALANCE XF204 (All versions \u003c V5.2.5), SCALANCE XF204 IRT (All versions \u003c 5.5.1), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE XF204-2BA IRT (All versions \u003c 5.5.1), SCALANCE XF206-1 (All versions \u003c V5.2.5), SCALANCE XF208 (All versions \u003c V5.2.5). Incorrect processing of POST requests in the web server may write out of bounds in stack. An attacker might leverage this to denial-of-service of the device or remote code execution.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.02361,"percentile":0.83994,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2021-04-22T20:42:20Z","modified":"2026-06-17T03:42:19Z","products":[{"vendor":"siemens","product":"scalance x200-4p irt"},{"vendor":"siemens","product":"scalance x201-3p irt"},{"vendor":"siemens","product":"scalance x201-3p irt pro"},{"vendor":"siemens","product":"scalance x202-2 irt"},{"vendor":"siemens","product":"scalance x202-2p irt (incl. siplus net variant)"},{"vendor":"siemens","product":"scalance x202-2p irt pro"},{"vendor":"siemens","product":"scalance x204 irt"},{"vendor":"siemens","product":"scalance x204 irt pro"},{"vendor":"siemens","product":"scalance x204-2 (incl. siplus net variant)"},{"vendor":"siemens","product":"scalance x204-2fm"},{"vendor":"siemens","product":"scalance x204-2ld (incl. siplus net variant)"},{"vendor":"siemens","product":"scalance x204-2ld ts"},{"vendor":"siemens","product":"scalance x204-2ts"},{"vendor":"siemens","product":"scalance x206-1"},{"vendor":"siemens","product":"scalance x206-1ld"},{"vendor":"siemens","product":"scalance x208 (incl. siplus net variant)"},{"vendor":"siemens","product":"scalance x208pro"},{"vendor":"siemens","product":"scalance x212-2 (incl. siplus net variant)"},{"vendor":"siemens","product":"scalance x212-2ld"},{"vendor":"siemens","product":"scalance x216"},{"vendor":"siemens","product":"scalance x224"},{"vendor":"siemens","product":"scalance xf201-3p irt"},{"vendor":"siemens","product":"scalance xf202-2p irt"},{"vendor":"siemens","product":"scalance xf204"},{"vendor":"siemens","product":"scalance xf204 irt"},{"vendor":"siemens","product":"scalance xf204-2 (incl. siplus net variant)"},{"vendor":"siemens","product":"scalance xf204-2ba irt"},{"vendor":"siemens","product":"scalance xf206-1"},{"vendor":"siemens","product":"scalance xf208"},{"vendor":"siemens","product":"scalance_x200-4p_irt_firmware"},{"vendor":"siemens","product":"scalance_x201-3p_irt_firmware"},{"vendor":"siemens","product":"scalance_x201-3p_irt_pro_firmware"},{"vendor":"siemens","product":"scalance_x202-2_irt_firmware"},{"vendor":"siemens","product":"scalance_x202-2p_irt_firmware"},{"vendor":"siemens","product":"scalance_x202-2p_irt_pro_firmware"},{"vendor":"siemens","product":"scalance_x204-2_firmware"},{"vendor":"siemens","product":"scalance_x204-2fm_firmware"},{"vendor":"siemens","product":"scalance_x204-2ld_firmware"},{"vendor":"siemens","product":"scalance_x204-2ld_ts_firmware"},{"vendor":"siemens","product":"scalance_x204-2ts_firmware"},{"vendor":"siemens","product":"scalance_x204_irt_firmware"},{"vendor":"siemens","product":"scalance_x204_irt_pro_firmware"},{"vendor":"siemens","product":"scalance_x206-1_firmware"},{"vendor":"siemens","product":"scalance_x206-1ld_firmware"},{"vendor":"siemens","product":"scalance_x208_firmware"},{"vendor":"siemens","product":"scalance_x208pro_firmware"},{"vendor":"siemens","product":"scalance_x212-2_firmware"},{"vendor":"siemens","product":"scalance_x212-2ld_firmware"},{"vendor":"siemens","product":"scalance_x216_firmware"},{"vendor":"siemens","product":"scalance_x224_firmware"},{"vendor":"siemens","product":"scalance_xf201-3p_irt_firmware"},{"vendor":"siemens","product":"scalance_xf202-2p_irt_firmware"},{"vendor":"siemens","product":"scalance_xf204-2_firmware"},{"vendor":"siemens","product":"scalance_xf204-2ba_irt_firmware"},{"vendor":"siemens","product":"scalance_xf204_firmware"},{"vendor":"siemens","product":"scalance_xf204_irt_firmware"},{"vendor":"siemens","product":"scalance_xf206-1_firmware"},{"vendor":"siemens","product":"scalance_xf208_firmware"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-187092.pdf","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-25669"},{"url":"https://github.com/advisories/GHSA-2956-2v8q-xc52"}],"sources":{"cve":[{"id":"CVE-2021-25669","description":"A vulnerability has been identified in SCALANCE X200-4P IRT (All versions \u003c 5.5.1), SCALANCE X201-3P IRT (All versions \u003c 5.5.1), SCALANCE X201-3P IRT PRO (All versions \u003c 5.5.1), SCALANCE X202-2 IRT (All versions \u003c 5.5.1), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All versions \u003c 5.5.1), SCALANCE X202-2P IRT PRO (All versions \u003c 5.5.1), SCALANCE X204 IRT (All versions \u003c 5.5.1), SCALANCE X204 IRT PRO (All versions \u003c 5.5.1), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X204-2FM (All versions \u003c V5.2.5), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X204-2LD TS (All versions \u003c V5.2.5), SCALANCE X204-2TS (All versions \u003c V5.2.5), SCALANCE X206-1 (All versions \u003c V5.2.5), SCALANCE X206-1LD (All versions \u003c V5.2.5), SCALANCE X208 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X208PRO (All versions \u003c V5.2.5), SCALANCE X212-2 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X212-2LD (All versions \u003c V5.2.5), SCALANCE X216 (All versions \u003c V5.2.5), SCALANCE X224 (All versions \u003c V5.2.5), SCALANCE XF201-3P IRT (All versions \u003c 5.5.1), SCALANCE XF202-2P IRT (All versions \u003c 5.5.1), SCALANCE XF204 (All versions \u003c V5.2.5), SCALANCE XF204 IRT (All versions \u003c 5.5.1), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE XF204-2BA IRT (All versions \u003c 5.5.1), SCALANCE XF206-1 (All versions \u003c V5.2.5), SCALANCE XF208 (All versions \u003c V5.2.5). Incorrect processing of POST requests in the web server may write out of bounds in stack. An attacker might leverage this to denial-of-service of the device or remote code execution.","status":"published","published":"2021-04-22T20:42:20Z","modified":"2024-08-03T20:11:27.908Z","cwes":["CWE-121"],"updated_at":"2026-11-02T14:32:59.430294Z"}],"euvd":[{"id":"EUVD-2021-12561","description":"A vulnerability has been identified in SCALANCE X200-4P IRT (All versions \u003c 5.5.1), SCALANCE X201-3P IRT (All versions \u003c 5.5.1), SCALANCE X201-3P IRT PRO (All versions \u003c 5.5.1), SCALANCE X202-2 IRT (All versions \u003c 5.5.1), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All versions \u003c 5.5.1), SCALANCE X202-2P IRT PRO (All versions \u003c 5.5.1), SCALANCE X204 IRT (All versions \u003c 5.5.1), SCALANCE X204 IRT PRO (All versions \u003c 5.5.1), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X204-2FM (All versions \u003c V5.2.5), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X204-2LD TS (All versions \u003c V5.2.5), SCALANCE X204-2TS (All versions \u003c V5.2.5), SCALANCE X206-1 (All versions \u003c V5.2.5), SCALANCE X206-1LD (All versions \u003c V5.2.5), SCALANCE X208 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X208PRO (All versions \u003c V5.2.5), SCALANCE X212-2 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X212-2LD (All versions \u003c V5.2.5), SCALANCE X216 (All versions \u003c V5.2.5), SCALANCE X224 (All versions \u003c V5.2.5), SCALANCE XF201-3P IRT (All versions \u003c 5.5.1), SCALANCE XF202-2P IRT (All versions \u003c 5.5.1), SCALANCE XF204 (All versions \u003c V5.2.5), SCALANCE XF204 IRT (All versions \u003c 5.5.1), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE XF204-2BA IRT (All versions \u003c 5.5.1), SCALANCE XF206-1 (All versions \u003c V5.2.5), SCALANCE XF208 (All versions \u003c V5.2.5). Incorrect processing of POST requests in the web server may write out of bounds in stack. An attacker might leverage this to denial-of-service of the device or remote code execution.","status":"published","published":"2021-04-22T20:42:20Z","modified":"2024-08-03T20:11:27Z","updated_at":"2026-11-03T03:24:52.420769Z"}],"ghsa":[{"id":"GHSA-2956-2v8q-xc52","title":"A vulnerability has been identified in SCALANCE X200-4P IRT (All versions \u003c 5.5.1), SCALANCE X201...","description":"A vulnerability has been identified in SCALANCE X200-4P IRT (All versions \u003c 5.5.1), SCALANCE X201-3P IRT (All versions \u003c 5.5.1), SCALANCE X201-3P IRT PRO (All versions \u003c 5.5.1), SCALANCE X202-2 IRT (All versions \u003c 5.5.1), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All versions \u003c 5.5.1), SCALANCE X202-2P IRT PRO (All versions \u003c 5.5.1), SCALANCE X204 IRT (All versions \u003c 5.5.1), SCALANCE X204 IRT PRO (All versions \u003c 5.5.1), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions), SCALANCE X204-2FM (All versions), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions), SCALANCE X204-2LD TS (All versions), SCALANCE X204-2TS (All versions), SCALANCE X206-1 (All versions), SCALANCE X206-1LD (All versions), SCALANCE X208 (incl. SIPLUS NET variant) (All versions), SCALANCE X208PRO (All versions), SCALANCE X212-2 (incl. SIPLUS NET variant) (All versions), SCALANCE X212-2LD (All versions), SCALANCE X216 (All versions), SCALANCE X224 (All versions), SCALANCE XF201-3P IRT (All versions \u003c 5.5.1), SCALANCE XF202-2P IRT (All versions \u003c 5.5.1), SCALANCE XF204 (All versions), SCALANCE XF204 IRT (All versions \u003c 5.5.1), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions), SCALANCE XF204-2BA IRT (All versions \u003c 5.5.1), SCALANCE XF206-1 (All versions), SCALANCE XF208 (All versions). Incorrect processing of POST requests in the web server may write out of bounds in stack. An attacker might leverage this to denial-of-service of the device or remote code execution.","status":"published","published":"2022-05-24T17:48:17Z","modified":"2023-01-29T05:06:27Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:46:01.439998Z"}],"nvd":[{"id":"CVE-2021-25669","description":"A vulnerability has been identified in SCALANCE X200-4P IRT (All versions \u003c 5.5.1), SCALANCE X201-3P IRT (All versions \u003c 5.5.1), SCALANCE X201-3P IRT PRO (All versions \u003c 5.5.1), SCALANCE X202-2 IRT (All versions \u003c 5.5.1), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All versions \u003c 5.5.1), SCALANCE X202-2P IRT PRO (All versions \u003c 5.5.1), SCALANCE X204 IRT (All versions \u003c 5.5.1), SCALANCE X204 IRT PRO (All versions \u003c 5.5.1), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X204-2FM (All versions \u003c V5.2.5), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X204-2LD TS (All versions \u003c V5.2.5), SCALANCE X204-2TS (All versions \u003c V5.2.5), SCALANCE X206-1 (All versions \u003c V5.2.5), SCALANCE X206-1LD (All versions \u003c V5.2.5), SCALANCE X208 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X208PRO (All versions \u003c V5.2.5), SCALANCE X212-2 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE X212-2LD (All versions \u003c V5.2.5), SCALANCE X216 (All versions \u003c V5.2.5), SCALANCE X224 (All versions \u003c V5.2.5), SCALANCE XF201-3P IRT (All versions \u003c 5.5.1), SCALANCE XF202-2P IRT (All versions \u003c 5.5.1), SCALANCE XF204 (All versions \u003c V5.2.5), SCALANCE XF204 IRT (All versions \u003c 5.5.1), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions \u003c V5.2.5), SCALANCE XF204-2BA IRT (All versions \u003c 5.5.1), SCALANCE XF206-1 (All versions \u003c V5.2.5), SCALANCE XF208 (All versions \u003c V5.2.5). Incorrect processing of POST requests in the web server may write out of bounds in stack. An attacker might leverage this to denial-of-service of the device or remote code execution.","status":"published","published":"2021-04-22T21:15:10.143Z","modified":"2026-06-17T03:42:19.607Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:06:52.03307Z"}]}}