{"schemaVersion":3,"id":"CVE-2021-25669","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT PRO (All versions < 5.5.1), SCALANCE X202-2 IRT (All versions < 5.5.1), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All versions < 5.5.1), SCALANCE X202-2P IRT PRO (All versions < 5.5.1), SCALANCE X204 IRT (All versions < 5.5.1), SCALANCE X204 IRT PRO (All versions < 5.5.1), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2FM (All versions < V5.2.5), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2LD TS (All versions < V5.2.5), SCALANCE X204-2TS (All versions < V5.2.5), SCALANCE X206-1 (All versions < V5.2.5), SCALANCE X206-1LD (All versions < V5.2.5), SCALANCE X208 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X208PRO (All versions < V5.2.5), SCALANCE X212-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X212-2LD (All versions < V5.2.5), SCALANCE X216 (All versions < V5.2.5), SCALANCE X224 (All versions < V5.2.5), SCALANCE XF201-3P IRT (All versions < 5.5.1), SCALANCE XF202-2P IRT (All versions < 5.5.1), SCALANCE XF204 (All versions < V5.2.5), SCALANCE XF204 IRT (All versions < 5.5.1), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE XF204-2BA IRT (All versions < 5.5.1), SCALANCE XF206-1 (All versions < V5.2.5), SCALANCE XF208 (All versions < 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.","dates":{"published":"2021-04-22T20:42:20.000Z","modified":"2024-08-03T20:11:27.908Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.8,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.8,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":7.5,"severity":"high","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.02129,"percentile":0.81668,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.02129},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02129,"percentile":0.81668}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02129,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02129,"percenti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