{"id":"CVE-2021-33716","aliases":["EUVD-2021-20393","GHSA-9mhw-hmhp-8rm5"],"status":"published","title":"A vulnerability has been identified in SIMATIC CP 1543-1 (incl. SIPLUS variants) (All versions \u003c...","description":"A vulnerability has been identified in SIMATIC CP 1543-1 (incl. SIPLUS variants) (All versions \u003c V3.0), SIMATIC CP 1545-1 (All versions \u003c V1.1). An attacker with access to the subnet of the affected device could retrieve sensitive information stored in cleartext.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00253,"percentile":0.16942,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-312"],"published":"2021-09-14T10:47:34Z","modified":"2026-06-17T03:55:05Z","products":[{"vendor":"siemens","product":"simatic cp 1543-1 (incl. siplus variants)"},{"vendor":"siemens","product":"simatic cp 1545-1"},{"vendor":"siemens","product":"simatic_cp_1543-1_firmware"},{"vendor":"siemens","product":"simatic_cp_1545-1_firmware"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-535997.pdf","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-33716"},{"url":"https://github.com/advisories/GHSA-9mhw-hmhp-8rm5"}],"sources":{"cve":[{"id":"CVE-2021-33716","description":"A vulnerability has been identified in SIMATIC CP 1543-1 (incl. SIPLUS variants) (All versions \u003c V3.0), SIMATIC CP 1545-1 (All versions \u003c V1.1). An attacker with access to the subnet of the affected device could retrieve sensitive information stored in cleartext.","status":"published","published":"2021-09-14T10:47:34Z","modified":"2024-08-03T23:58:22.881Z","cwes":["CWE-312"],"updated_at":"2026-11-02T14:33:10.204494Z"}],"euvd":[{"id":"EUVD-2021-20393","description":"A vulnerability has been identified in SIMATIC CP 1543-1 (incl. SIPLUS variants) (All versions \u003c V3.0), SIMATIC CP 1545-1 (All versions \u003c V1.1). An attacker with access to the subnet of the affected device could retrieve sensitive information stored in cleartext.","status":"published","published":"2021-09-14T10:47:34Z","modified":"2024-08-03T23:58:22Z","updated_at":"2026-11-03T03:24:33.318275Z"}],"ghsa":[{"id":"GHSA-9mhw-hmhp-8rm5","title":"A vulnerability has been identified in SIMATIC CP 1543-1 (incl. SIPLUS variants) (All versions \u003c...","description":"A vulnerability has been identified in SIMATIC CP 1543-1 (incl. SIPLUS variants) (All versions \u003c V3.0), SIMATIC CP 1545-1 (All versions). An attacker with access to the subnet of the affected device could retrieve sensitive information stored in cleartext.","status":"published","published":"2022-05-24T19:14:32Z","modified":"2023-01-27T05:03:21Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T14:42:13.826528Z"}],"nvd":[{"id":"CVE-2021-33716","description":"A vulnerability has been identified in SIMATIC CP 1543-1 (incl. SIPLUS variants) (All versions \u003c V3.0), SIMATIC CP 1545-1 (All versions \u003c V1.1). An attacker with access to the subnet of the affected device could retrieve sensitive information stored in cleartext.","status":"published","published":"2021-09-14T11:15:24.347Z","modified":"2026-06-17T03:55:05.83Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.3,"vector":"AV:A/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T14:06:58.502206Z"}]}}