{"id":"CVE-2018-0121","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-0121","generatedAt":"2026-10-28T20:25:42.244Z","title":"A vulnerability in the authentication functionality of the web-based service portal of Cisco Elastic Services Controller Software could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions with administrator…","description":"A vulnerability in the authentication functionality of the web-based service portal of Cisco Elastic Services Controller Software could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary actions with administrator privileges on an affected system. The vulnerability is due to improper security restrictions that are imposed by the web-based service portal of the affected software. An attacker could exploit this vulnerability by submitting an empty password value to an affected portal when prompted to enter an administrative password for the portal. A successful exploit could allow the attacker to bypass authentication and gain administrator privileges for the web-based service portal of the affected software. This vulnerability affects Cisco Elastic Services Controller Software Release 3.0.0. Cisco Bug IDs: CSCvg29809.","published":"2018-02-22T00:29:00.000Z","lastModified":"2026-06-17T01:29:37.000Z","status":"Modified","sourceIdentifier":"psirt@cisco.com","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-287"],"affected":["cisco/elastic services controller","cisco/virtual managed services"],"epss":{"score":0.02514,"percentile":0.84714,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/103113","tags":["Third Party Advisory","VDB Entry"],"source":"psirt@cisco.com"},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180221-esc","tags":["Vendor Advisory"],"source":"psirt@cisco.com"},{"url":"http://www.securityfocus.com/bid/103113","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180221-esc","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-0121","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}