{"id":"CVE-2023-27389","aliases":["EUVD-2023-31165","GHSA-88r9-vcj8-625f"],"status":"published","title":"Inadequate encryption strength vulnerability in CONPROSYS IoT Gateway products allows a remote...","description":"Inadequate encryption strength vulnerability in CONPROSYS IoT Gateway products allows a remote authenticated attacker with an administrative privilege to apply a specially crafted Firmware update file, alter the information, cause a denial-of-service (DoS) condition, and/or execute arbitrary code. The affected products and versions are as follows: M2M Gateway with the firmware Ver.3.7.10 and earlier (CPS-MG341-ADSC1-111, CPS-MG341-ADSC1-931, CPS-MG341G-ADSC1-111, CPS-MG341G-ADSC1-930, and CPS-MG341G5-ADSC1-931), M2M Controller Integrated Type with firmware Ver.3.7.6 and earlier versions (CPS-MC341-ADSC1-111, CPS-MC341-ADSC1-931, CPS-MC341-ADSC2-111, CPS-MC341G-ADSC1-110, CPS-MC341Q-ADSC1-111, CPS-MC341-DS1-111, CPS-MC341-DS11-111, CPS-MC341-DS2-911, and CPS-MC341-A1-111), and M2M Controller Configurable Type with firmware Ver.3.8.8 and earlier versions (CPS-MCS341-DS1-111, CPS-MCS341-DS1-131, CPS-MCS341G-DS1-130, CPS-MCS341G5-DS1-130, and CPS-MCS341Q-DS1-131).","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00523,"percentile":0.44873,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-326"],"published":"2023-04-11T00:00:00Z","modified":"2026-06-17T05:44:55Z","products":[{"vendor":"contec","product":"cps-mc341-a1-111_firmware"},{"vendor":"contec","product":"cps-mc341-adsc1-111_firmware"},{"vendor":"contec","product":"cps-mc341-adsc1-931_firmware"},{"vendor":"contec","product":"cps-mc341-adsc2-111_firmware"},{"vendor":"contec","product":"cps-mc341-ds1-111_firmware"},{"vendor":"contec","product":"cps-mc341-ds11-111_firmware"},{"vendor":"contec","product":"cps-mc341-ds2-911_firmware"},{"vendor":"contec","product":"cps-mc341g-adsc1-110_firmware"},{"vendor":"contec","product":"cps-mc341q-adsc1-111_firmware"},{"vendor":"contec","product":"cps-mcs341-ds1-111_firmware"},{"vendor":"contec","product":"cps-mcs341-ds1-131_firmware"},{"vendor":"contec","product":"cps-mcs341g-ds1-130_firmware"},{"vendor":"contec","product":"cps-mcs341g5-ds1-130_firmware"},{"vendor":"contec","product":"cps-mcs341q-ds1-131_firmware"},{"vendor":"contec","product":"cps-mg341-adsc1-111_firmware"},{"vendor":"contec","product":"cps-mg341-adsc1-931_firmware"},{"vendor":"contec","product":"cps-mg341g-adsc1-111_firmware"},{"vendor":"contec","product":"cps-mg341g-adsc1-930_firmware"},{"vendor":"contec","product":"cps-mg341g5-adsc1-931_firmware"},{"vendor":"contec co.,ltd.","product":"conprosys iot gateway products"}],"references":[{"url":"https://www.contec.com/api/downloadlogger?download=/-/media/Contec/jp/support/security-info/contec_security_cps_230317_en.pdf","tags":["x_transferred","Mitigation","Vendor Advisory"]},{"url":"https://www.contec.com/download/donwload-list/?itemid=f832c526-dcf6-4976-85aa-f536c15a8120#firmware","tags":["x_transferred","Product"]},{"url":"https://www.contec.com/download/donwload-list/?itemid=a054b3eb-da97-40d0-9598-d7f5ff4239ec#firmware","tags":["x_transferred","Product"]},{"url":"https://www.contec.com/download/donwload-list/?itemid=a1b33f0d-d32b-4549-9741-613cd37d5528#firmware","tags":["x_transferred","Product"]},{"url":"https://jvn.jp/en/vu/JVNVU96198617/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27389"},{"url":"https://jvn.jp/en/vu/JVNVU96198617"},{"url":"https://github.com/advisories/GHSA-88r9-vcj8-625f"}],"sources":{"cve":[{"id":"CVE-2023-27389","description":"Inadequate encryption strength vulnerability in CONPROSYS IoT Gateway products allows a remote authenticated attacker with an administrative privilege to apply a specially crafted Firmware update file, alter the information, cause a denial-of-service (DoS) condition, and/or execute arbitrary code. The affected products and versions are as follows: M2M Gateway with the firmware Ver.3.7.10 and earlier (CPS-MG341-ADSC1-111, CPS-MG341-ADSC1-931, CPS-MG341G-ADSC1-111, CPS-MG341G-ADSC1-930, and CPS-MG341G5-ADSC1-931), M2M Controller Integrated Type with firmware Ver.3.7.6 and earlier versions (CPS-MC341-ADSC1-111, CPS-MC341-ADSC1-931, CPS-MC341-ADSC2-111, CPS-MC341G-ADSC1-110, CPS-MC341Q-ADSC1-111, CPS-MC341-DS1-111, CPS-MC341-DS11-111, CPS-MC341-DS2-911, and CPS-MC341-A1-111), and M2M Controller Configurable Type with firmware Ver.3.8.8 and earlier versions (CPS-MCS341-DS1-111, CPS-MCS341-DS1-131, CPS-MCS341G-DS1-130, CPS-MCS341G5-DS1-130, and CPS-MCS341Q-DS1-131).","status":"published","published":"2023-04-11T00:00:00Z","modified":"2025-02-10T21:31:14.807Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:35:26.63732Z"}],"euvd":[{"id":"EUVD-2023-31165","description":"Inadequate encryption strength vulnerability in CONPROSYS IoT Gateway products allows a remote authenticated attacker with an administrative privilege to apply a specially crafted Firmware update file, alter the information, cause a denial-of-service (DoS) condition, and/or execute arbitrary code. The affected products and versions are as follows: M2M Gateway with the firmware Ver.3.7.10 and earlier (CPS-MG341-ADSC1-111, CPS-MG341-ADSC1-931, CPS-MG341G-ADSC1-111, CPS-MG341G-ADSC1-930, and CPS-MG341G5-ADSC1-931), M2M Controller Integrated Type with firmware Ver.3.7.6 and earlier versions (CPS-MC341-ADSC1-111, CPS-MC341-ADSC1-931, CPS-MC341-ADSC2-111, CPS-MC341G-ADSC1-110, CPS-MC341Q-ADSC1-111, CPS-MC341-DS1-111, CPS-MC341-DS11-111, CPS-MC341-DS2-911, and CPS-MC341-A1-111), and M2M Controller Configurable Type with firmware Ver.3.8.8 and earlier versions (CPS-MCS341-DS1-111, CPS-MCS341-DS1-131, CPS-MCS341G-DS1-130, CPS-MCS341G5-DS1-130, and CPS-MCS341Q-DS1-131).","status":"published","published":"2023-04-11T00:00:00Z","modified":"2025-02-10T21:31:14Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:00.770319Z"}],"ghsa":[{"id":"GHSA-88r9-vcj8-625f","title":"Inadequate encryption strength vulnerability in CONPROSYS IoT Gateway products allows a remote...","description":"Inadequate encryption strength vulnerability in CONPROSYS IoT Gateway products allows a remote authenticated attacker with an administrative privilege to apply a specially crafted Firmware update file, alter the information, cause a denial-of-service (DoS) condition, and/or execute arbitrary code. The affected products and versions are as follows: M2M Gateway with the firmware Ver.3.7.10 and earlier (CPS-MG341-ADSC1-111, CPS-MG341-ADSC1-931, CPS-MG341G-ADSC1-111, CPS-MG341G-ADSC1-930, and CPS-MG341G5-ADSC1-931), M2M Controller Integrated Type with firmware Ver.3.7.6 and earlier versions (CPS-MC341-ADSC1-111, CPS-MC341-ADSC1-931, CPS-MC341-ADSC2-111, CPS-MC341G-ADSC1-110, CPS-MC341Q-ADSC1-111, CPS-MC341-DS1-111, CPS-MC341-DS11-111, CPS-MC341-DS2-911, and CPS-MC341-A1-111), and M2M Controller Configurable Type with firmware Ver.3.8.8 and earlier versions (CPS-MCS341-DS1-111, CPS-MCS341-DS1-131, CPS-MCS341G-DS1-130, CPS-MCS341G5-DS1-130, and CPS-MCS341Q-DS1-131).","status":"published","published":"2023-04-11T09:30:23Z","modified":"2024-04-04T03:23:51Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:56:14.332077Z"}],"nvd":[{"id":"CVE-2023-27389","description":"Inadequate encryption strength vulnerability in CONPROSYS IoT Gateway products allows a remote authenticated attacker with an administrative privilege to apply a specially crafted Firmware update file, alter the information, cause a denial-of-service (DoS) condition, and/or execute arbitrary code. The affected products and versions are as follows: M2M Gateway with the firmware Ver.3.7.10 and earlier (CPS-MG341-ADSC1-111, CPS-MG341-ADSC1-931, CPS-MG341G-ADSC1-111, CPS-MG341G-ADSC1-930, and CPS-MG341G5-ADSC1-931), M2M Controller Integrated Type with firmware Ver.3.7.6 and earlier versions (CPS-MC341-ADSC1-111, CPS-MC341-ADSC1-931, CPS-MC341-ADSC2-111, CPS-MC341G-ADSC1-110, CPS-MC341Q-ADSC1-111, CPS-MC341-DS1-111, CPS-MC341-DS11-111, CPS-MC341-DS2-911, and CPS-MC341-A1-111), and M2M Controller Configurable Type with firmware Ver.3.8.8 and earlier versions (CPS-MCS341-DS1-111, CPS-MCS341-DS1-131, CPS-MCS341G-DS1-130, CPS-MCS341G5-DS1-130, and CPS-MCS341Q-DS1-131).","status":"published","published":"2023-04-11T09:15:08.11Z","modified":"2026-06-17T05:44:55.947Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-326"],"updated_at":"2026-11-02T14:07:53.719171Z"}]}}