{"schema":"threatline.record/2","record":{"id":"CVE-2015-7755","aliases":[],"summary":"Juniper ScreenOS Improper Authentication Vulnerability","details":"Juniper ScreenOS contains an improper authentication vulnerability that could allow unauthorized remote administrative access to the device.","categories":["Network & edge"],"product":"ScreenOS","vendor":"Juniper","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2015-7755","source_modified_at":"2025-10-21T23:55:56.610Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}],"defaultStatus":null}],"fixed_versions":[],"cvss":9.8,"severity":"Critical","kev":{"listed":true,"date_added":"2025-10-02","due_date":"2025-10-23","required_action":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.61139,"percentile":0.99162,"score_date":"2026-10-23"},"published_at":"2015-12-19T11:00:00.000Z","modified_at":"2025-10-21T23:55:56.610Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2015-7755","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:55:56.610Z"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/ssh/juniper_backdoor.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2015-12-20"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2015-7755","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Metasploit","EPSS"],"references":[{"url":"https://supportportal.juniper.net/s/article/2015-12-Out-of-Cycle-Security-Bulletin-ScreenOS-Multiple-Security-issues-with-ScreenOS-CVE-2015-7755-CVE-2015-7756","source":"CISA KEV"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-7755","source":"CISA KEV"},{"source":"CVE List","url":"https://forums.juniper.net/t5/Security-Incident-Response/Important-Announcement-about-ScreenOS/ba-p/285554","tags":["x_refsource_CONFIRM","x_transferred"]},{"source":"CVE List","url":"https://github.com/hdm/juniper-cve-2015-7755","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://adamcaudill.com/2015/12/17/much-ado-about-juniper/","tags":["x_refsource_MISC","x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-7755","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"active","automatable":"yes","technical_impact":"total","assessed_at":"2025-10-02T03:55:46.311110Z"},"exploits":[{"source":"Metasploit","kind":"Auxiliary module","name":"Juniper SSH Backdoor Scanner","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/ssh/juniper_backdoor.rb","date":"2015-12-20","added":"2025-09-22","check":false}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2025-10-21T23:55:56.610Z","content_hash":"1e3e3d03f60faf590adeb405d4aaa4df938c0c0105ce54da3573df7e0a139ad3"}}