{"cve":"CVE-2022-43768","nvd":{"published":"2023-04-11T10:15:17.617","modified":"2026-10-23T23:10:00.157","status":"Modified","description":"A vulnerability has been identified in SIMATIC CP 1242-7 V2 (6GK7242-7KX31-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-1 (6GK7243-1BX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC CP 1243-7 LTE EU (6GK7243-7KX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-7 LTE US (6GK7243-7SX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0) (All versions < V2.3), SIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0) (All versions < V2.3), SIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0) (All versions < V2.3), SIMATIC CP 443-1 (6GK7443-1EX30-0XE0) (All versions < V3.3), SIMATIC CP 443-1 (6GK7443-1EX30-0XE1) (All versions < V3.3), SIMATIC CP 443-1 Advanced (6GK7443-1GX30-0XE0) (All versions < V3.3), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0) (All versions < V2.3), SIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0) (All versions < V2.3), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0) (All versions < V2.3), SIPLUS NET CP 1242-7 V2 (6AG1242-7KX31-7XE0) (All versions < V3.4.29), SIPLUS NET CP 443-1 (6AG1443-1EX30-4XE0) (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (6AG1443-1GX30-4XE0) (All versions < V3.3), SIPLUS S7-1200 CP 1243-1 (6AG1243-1BX30-2AX0) (All versions < V3.4.29), SIPLUS S7-1200 CP 1243-1 RAIL (6AG2243-1BX30-1XE0) (All versions < V3.4.29), SIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0) (All versions < V2.3.6), TIM 1531 IRC (6GK7543-1MX00-0XE0) (All versions < V2.3.6). The webserver of the affected products contains a vulnerability that may lead to a denial of service condition. An attacker may cause a denial of service situation of the webserver of the affected product.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-770"],"references":["https://cert-portal.siemens.com/productcert/html/ssa-139628.html","https://cert-portal.siemens.com/productcert/html/ssa-566905.html","https://cert-portal.siemens.com/productcert/pdf/ssa-566905.pdf","https://cert-portal.siemens.com/productcert/html/ssa-139628.html","https://cert-portal.siemens.com/productcert/html/ssa-566905.html"],"products":["siemens:simatic_cp_1242-7_v2_firmware","siemens:simatic_cp_1243-1_dnp3_firmware","siemens:simatic_cp_1243-1_firmware","siemens:simatic_cp_1243-1_iec_firmware","siemens:simatic_cp_1243-7_lte_eu_firmware","siemens:simatic_cp_1243-7_lte_us_firmware","siemens:simatic_cp_1243-8_irc_firmware","siemens:simatic_cp_1542sp-1_firmware","siemens:simatic_cp_1542sp-1_irc_firmware","siemens:simatic_cp_1543sp-1_firmware","siemens:simatic_cp_443-1_advanced_firmware","siemens:simatic_cp_443-1_firmware","siemens:simatic_ipc_diagbase_firmware","siemens:simatic_ipc_diagmonitor_firmware","siemens:siplus_et_200sp_cp_1542sp-1_irc_tx_rail_firmware","siemens:siplus_et_200sp_cp_1543sp-1_isec_firmware","siemens:siplus_et_200sp_cp_1543sp-1_isec_tx_rail_firmware","siemens:siplus_net_cp_1242-7_v2_firmware","siemens:siplus_net_cp_443-1_advanced_firmware","siemens:siplus_net_cp_443-1_firmware","siemens:siplus_s7-1200_cp_1243-1_firmware","siemens:siplus_s7-1200_cp_1243-1_rail_firmware","siemens:siplus_tim_1531_irc_firmware","siemens:tim_1531_irc_firmware"],"source":"nvd","synced_at":"2026-10-24T16:53:27.712498749+00:00"},"epss":{"cve":"CVE-2022-43768","score":0.00954,"percentile":0.61111,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}