{"id":"CVE-2020-3257","aliases":["EUVD-2020-24528","GHSA-hj3c-74jp-76r5"],"status":"published","title":"Cisco IOx Application Environment for IOS Software for Cisco Industrial Routers Vulnerabilities","description":"Multiple vulnerabilities in the Cisco IOx application environment of Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) that are running Cisco IOS Software could allow an attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","severity":{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00703,"percentile":0.53563,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-20"],"published":"2020-06-03T17:56:08Z","modified":"2026-06-17T03:17:47Z","products":[{"vendor":"cisco","product":"cisco ios 12.2(60)ez16"},{"vendor":"cisco","product":"ios"}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-iot-gos-vuln-s9qS8kYL","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-3257"},{"url":"https://github.com/advisories/GHSA-hj3c-74jp-76r5"}],"sources":{"cve":[{"id":"CVE-2020-3257","title":"Cisco IOx Application Environment for IOS Software for Cisco Industrial Routers Vulnerabilities","description":"Multiple vulnerabilities in the Cisco IOx application environment of Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) that are running Cisco IOS Software could allow an attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2020-06-03T17:56:08.634Z","modified":"2024-11-15T17:11:12.408Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:35:52.268457Z"}],"euvd":[{"id":"EUVD-2020-24528","description":"Multiple vulnerabilities in the Cisco IOx application environment of Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) that are running Cisco IOS Software could allow an attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2020-06-03T17:56:08Z","modified":"2024-11-15T17:11:12Z","cvss":[{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:59.043854Z"}],"ghsa":[{"id":"GHSA-hj3c-74jp-76r5","title":"Multiple vulnerabilities in the Cisco IOx application environment of Cisco 809 and 829 Industrial...","description":"Multiple vulnerabilities in the Cisco IOx application environment of Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) that are running Cisco IOS Software could allow an attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2022-05-24T17:19:09Z","modified":"2024-04-04T02:54:03Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"high"}],"cwes":["CWE-20","CWE-119"],"updated_at":"2026-11-02T14:56:12.690799Z"}],"nvd":[{"id":"CVE-2020-3257","description":"Multiple vulnerabilities in the Cisco IOx application environment of Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) that are running Cisco IOS Software could allow an attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.","status":"published","published":"2020-06-03T18:15:21.84Z","modified":"2026-06-17T03:17:47.45Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.0","score":8.1,"vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":4.8,"vector":"AV:A/AC:L/Au:N/C:N/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20","CWE-119"],"updated_at":"2026-11-02T14:06:04.922138Z"}]}}