{"schema_version":"public-product-v1.1","generated_at":"2026-07-21T11:04:18Z","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","advisory":{"id":"Cisco-SA-20150820-CVE-2015-4331","slug":"cisco-sa-20150820-cve-2015-4331","vendor":"Cisco","title":"Cisco Prime Infrastructure Privilege Escalation Vulnerability","summary":"A vulnerability in the Cisco Prime Infrastructure (PI) username storage and authentication process could allow an authenticated, remote attacker to gain elevated privileges on a targeted system. The vulnerability occurs because the affected software saves case-sensitive usernames and performs case-sensitive string comparisons. An attacker could exploit this vulnerability during authentication by entering a username that contains characters in cases different from the combination registered on the affected software. If the Cisco PI is configured for external authentication using a AAA server, the login will succeed but the affected software will assign default authorizations to the user who is logged in. A successful exploit could allow the attacker to access the targeted system and elevate privileges in the application. Cisco has confirmed the vulnerability; however, software updates are not available.  To exploit this vulnerability, an attacker must authenticate to the targeted device. A successful exploit could be accomplished if the affected software is configured for external authentication. These access requirements reduce the likelihood of a successful exploit. Cisco  indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.","severity":"Medium","published_at":"2015-08-20T13:45:27Z","updated_at":"2015-08-20T13:45:27Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/Cisco-SA-20150820-CVE-2015-4331","csaf_url":"https://sec.cloudapps.cisco.com/security/center/contentjson/CiscoSecurityAdvisory/Cisco-SA-20150820-CVE-2015-4331/csaf/Cisco-SA-20150820-CVE-2015-4331.json","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure."},"freshness":{"last_source_refreshed_at":"2026-07-21T05:16:34Z","latest_source_refresh_at":"2026-07-21T05:16:34Z","oldest_source_refresh_at":"2026-07-21T03:00:03Z","all_sources_fresh":true,"sources":[{"source":"cisco_advisories","label":"Cisco advisories","last_success_at":"2026-07-21T03:00:03Z","stale":false},{"source":"cisco_csaf","label":"Cisco CSAF","last_success_at":"2026-07-21T05:14:24Z","stale":false},{"source":"nvd_cves","label":"NVD CVEs","last_success_at":"2026-07-21T05:16:30Z","stale":false},{"source":"cisa_kev","label":"CISA KEV","last_success_at":"2026-07-21T05:16:31Z","stale":false},{"source":"first_epss","label":"EPSS","last_success_at":"2026-07-21T05:16:34Z","stale":false}]},"summary":{"cve_count":1,"visible_product_count":1,"public_evidence_count":1,"kev_count":0,"highest_epss":0.01778},"cves":[{"id":"CVE-2015-4331","kev":false,"epss":{"score":0.01778,"percentile":0.75793,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"}}],"public_evidence":[{"product":{"name":"Cisco Prime Infrastructure","slug":"cisco-prime-infrastructure","vendor":"Cisco"},"cve":{"id":"CVE-2015-4331"},"evidence_type":"structured_affected","evidence_label":{"scope":"CSAF product evidence","label":"product_status known affected"},"evidence_source":"Cisco CSAF","source":"Cisco CSAF","source_document_fetched_at":"2026-07-20T04:32:33Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco Prime Infrastructure","exposure_verdict":"not_assessed","verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","exposure_verdict_reason":"Public evidence does not evaluate exact release, platform, enabled features, configuration, compensating controls, or live exposure.","kev":false,"epss":{"score":0.01778,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:33Z"},"published_at":"2015-08-20T13:45:27Z","updated_at":"2015-08-20T13:45:27Z","advisory_updated_at":"2015-08-20T13:45:27Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/Cisco-SA-20150820-CVE-2015-4331","row_display_order":1}]}