{"schema_version":"public-product-v1.1","generated_at":"2026-07-21T11:04:43Z","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-20150619-CVE-2015-4201","slug":"cisco-sa-20150619-cve-2015-4201","vendor":"Cisco","title":"Cisco Gateway GPRS Support Node TCP Invalid Packet Vulnerability","summary":"A vulnerability in the TCP packet input handler of the Cisco Gateway GPRS Support Node (GGSN) could allow an unauthenticated, remote attacker to cause a reset of the Session Manager application. The vulnerability is due to improper input validation of the length fields of the TCP/IP header. An attacker could exploit this vulnerability by sending a crafted TCP packet with an invalid TCP/IP header. A successful exploit could allow the attacker to cause the Session Manager application on an affected device to restart, resulting in a DoS condition. Cisco has confirmed the vulnerability and released software updates. To exploit this vulnerability, the attacker must send a crafted TCP packet with an invalid TCP/IP header to the targeted system, making exploitation more difficult in environments that restrict network access from untrusted sources. 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":"2015-06-19T19:09:59Z","updated_at":"2015-06-19T19:09:59Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/Cisco-SA-20150619-CVE-2015-4201","csaf_url":"https://sec.cloudapps.cisco.com/security/center/contentjson/CiscoSecurityAdvisory/Cisco-SA-20150619-CVE-2015-4201/csaf/Cisco-SA-20150619-CVE-2015-4201.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":0.02959},"cves":[{"id":"CVE-2015-4201","kev":false,"epss":{"score":0.02959,"percentile":0.8569,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:32Z"}}],"public_evidence":[{"product":{"name":"Cisco ASR 5000 Series Software","slug":"cisco-asr-5000-series-software","vendor":"Cisco"},"cve":{"id":"CVE-2015-4201"},"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":"2026-07-19T23:31:49Z","csaf_status":"known_affected","csaf_product_status":"known_affected","csaf_product_status_path":"vulnerabilities[].product_status.known_affected","raw_product_name":"Cisco ASR 5000 Series Software","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":0.02959,"score_date":"2026-07-20","updated_at":"2026-07-21T05:16:32Z"},"published_at":"2015-06-19T19:09:59Z","updated_at":"2015-06-19T19:09:59Z","advisory_updated_at":"2015-06-19T19:09:59Z","source_url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/Cisco-SA-20150619-CVE-2015-4201","row_display_order":1}]}