{"id":"CVE-2021-1381","aliases":["EUVD-2021-6848","GHSA-r4g8-p4x8-42m9"],"status":"published","title":"Cisco IOS XE Software Active Debug Code Vulnerability","description":"A vulnerability in Cisco IOS XE Software could allow an authenticated, local attacker with high privileges or an unauthenticated attacker with physical access to the device to open a debugging console. The vulnerability is due to insufficient command authorization restrictions. An attacker could exploit this vulnerability by running commands on the hardware platform to open a debugging console. A successful exploit could allow the attacker to access a debugging console.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00277,"percentile":0.20374,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-489"],"published":"2021-03-24T20:20:21Z","modified":"2026-06-17T03:31:38Z","products":[{"vendor":"cisco","product":"cisco ios xe software"},{"vendor":"cisco","product":"ios_xe"}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-XE-BLKH-Ouvrnf2s","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-1381"},{"url":"https://github.com/advisories/GHSA-r4g8-p4x8-42m9"}],"sources":{"cve":[{"id":"CVE-2021-1381","title":"Cisco IOS XE Software Active Debug Code Vulnerability","description":"A vulnerability in Cisco IOS XE Software could allow an authenticated, local attacker with high privileges or an unauthenticated attacker with physical access to the device to open a debugging console. The vulnerability is due to insufficient command authorization restrictions. An attacker could exploit this vulnerability by running commands on the hardware platform to open a debugging console. A successful exploit could allow the attacker to access a debugging console.","status":"published","published":"2021-03-24T20:20:21.002Z","modified":"2024-11-08T23:31:08.089Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-489"],"updated_at":"2026-11-02T14:33:08.045407Z"}],"euvd":[{"id":"EUVD-2021-6848","description":"A vulnerability in Cisco IOS XE Software could allow an authenticated, local attacker with high privileges or an unauthenticated attacker with physical access to the device to open a debugging console. The vulnerability is due to insufficient command authorization restrictions. An attacker could exploit this vulnerability by running commands on the hardware platform to open a debugging console. A successful exploit could allow the attacker to access a debugging console.","status":"published","published":"2021-03-24T20:20:21Z","modified":"2024-11-08T23:31:08Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T00:05:05.398891Z"}],"ghsa":[{"id":"GHSA-r4g8-p4x8-42m9","title":"A vulnerability in Cisco IOS XE Software could allow an authenticated, local attacker with high...","description":"A vulnerability in Cisco IOS XE Software could allow an authenticated, local attacker with high privileges or an unauthenticated attacker with physical access to the device to open a debugging console. The vulnerability is due to insufficient command authorization restrictions. An attacker could exploit this vulnerability by running commands on the hardware platform to open a debugging console. A successful exploit could allow the attacker to access a debugging console.","status":"published","published":"2022-05-24T17:45:11Z","modified":"2023-01-29T05:06:57Z","cwes":["CWE-489"],"updated_at":"2026-11-02T14:46:07.317218Z"}],"nvd":[{"id":"CVE-2021-1381","description":"A vulnerability in Cisco IOS XE Software could allow an authenticated, local attacker with high privileges or an unauthenticated attacker with physical access to the device to open a debugging console. The vulnerability is due to insufficient command authorization restrictions. An attacker could exploit this vulnerability by running commands on the hardware platform to open a debugging console. A successful exploit could allow the attacker to access a debugging console.","status":"published","published":"2021-03-24T21:15:12.32Z","modified":"2026-06-17T03:31:38.57Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-489"],"updated_at":"2026-11-02T14:06:51.197859Z"}]}}