{"id":"CVE-2016-8562","aliases":["EUVD-2016-9410","GHSA-f87x-hp4c-9cvw"],"status":"published","title":"A vulnerability has been identified in SIMATIC CP 1543-1 (All versions \u003c V2.0.28), SIPLUS NET CP...","description":"A vulnerability has been identified in SIMATIC CP 1543-1 (All versions \u003c V2.0.28), SIPLUS NET CP 1543-1 (All versions \u003c V2.0.28). Under special conditions it was possible to write SNMP variables on port 161/udp which should be read-only and should only be configured with TIA-Portal. A write to these variables could reduce the availability or cause a denial-of-service.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-06","score":0.0361,"percentile":0.89536,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2016-11-18T21:00:00Z","modified":"2026-06-17T00:54:31Z","kev":{"date_added":"2022-03-03","due_date":"2022-03-24","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2022-03-03"},{"source":"kev","since":"2022-03-03"}],"products":[{"vendor":"siemens","product":"simatic cp"},{"vendor":"siemens","product":"simatic_cp_1543-1_firmware"},{"vendor":"siemens","product":"siplus_net_cp_1543-1_firmware"}],"references":[{"url":"http://www.securityfocus.com/bid/94436","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-16-327-01","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-672373.pdf","tags":["x_refsource_CONFIRM","x_transferred","Broken Link","Patch","Vendor Advisory"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-672373.pdf","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-8562","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-8562"},{"url":"https://github.com/advisories/GHSA-f87x-hp4c-9cvw"}],"sources":{"cve":[{"id":"CVE-2016-8562","description":"A vulnerability has been identified in SIMATIC CP 1543-1 (All versions \u003c V2.0.28), SIPLUS NET CP 1543-1 (All versions \u003c V2.0.28). Under special conditions it was possible to write SNMP variables on port 161/udp which should be read-only and should only be configured with TIA-Portal. A write to these variables could reduce the availability or cause a denial-of-service.","status":"published","published":"2016-11-18T21:00:00Z","modified":"2025-10-21T23:55:48.03Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"updated_at":"2026-11-02T14:33:32.415289Z"}],"euvd":[{"id":"EUVD-2016-9410","description":"A vulnerability has been identified in SIMATIC CP 1543-1 (All versions \u003c V2.0.28), SIPLUS NET CP 1543-1 (All versions \u003c V2.0.28). Under special conditions it was possible to write SNMP variables on port 161/udp which should be read-only and should only be configured with TIA-Portal. A write to these variables could reduce the availability or cause a denial-of-service.","status":"published","published":"2016-11-18T21:00:00Z","modified":"2025-10-21T23:55:48Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"exploited_since":"2022-03-03","updated_at":"2026-11-02T19:49:39.684828Z"}],"ghsa":[{"id":"GHSA-f87x-hp4c-9cvw","title":"A vulnerability has been identified in SIMATIC CP 1543-1 (All versions \u003c V2.0.28), SIPLUS NET CP...","description":"A vulnerability has been identified in SIMATIC CP 1543-1 (All versions \u003c V2.0.28), SIPLUS NET CP 1543-1 (All versions \u003c V2.0.28). Under special conditions it was possible to write SNMP variables on port 161/udp which should be read-only and should only be configured with TIA-Portal. A write to these variables could reduce the availability or cause a denial-of-service.","status":"published","published":"2022-05-13T01:02:35Z","modified":"2025-10-22T00:32:21Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T15:04:05.344883Z"}],"kev":[{"id":"CVE-2016-8562","title":"Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability","description":"An improper privilege management vulnerability exists within the Siemens SIMATIC Communication Processor (CP) that allows a privileged attacker to remotely cause a denial of service.","cwes":["CWE-20"],"kev":{"date_added":"2022-03-03","due_date":"2022-03-24","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:16.541131Z"}],"nvd":[{"id":"CVE-2016-8562","description":"A vulnerability has been identified in SIMATIC CP 1543-1 (All versions \u003c V2.0.28), SIPLUS NET CP 1543-1 (All versions \u003c V2.0.28). Under special conditions it was possible to write SNMP variables on port 161/udp which should be read-only and should only be configured with TIA-Portal. A write to these variables could reduce the availability or cause a denial-of-service.","status":"published","published":"2016-11-18T21:59:02.033Z","modified":"2026-06-17T00:54:31.297Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:N/A:P","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:03:32.086916Z"}]}}