{"schema":"threatline.record/2","record":{"id":"CVE-2025-3935","aliases":[],"summary":"ConnectWise ScreenConnect Improper Authentication Vulnerability","details":"ConnectWise ScreenConnect contains an improper authentication vulnerability. This vulnerability could allow a ViewState code injection attack, which could allow remote code execution if machine keys are compromised.","categories":["Applications & CMS"],"product":"ScreenConnect","vendor":"ConnectWise","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2025-3935","source_modified_at":"2026-02-26T18:28:01.567Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"ScreenConnect","vendor":"ConnectWise","versions":[{"status":"affected","version":"<25.2.3"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":8.1,"severity":"High","kev":{"listed":true,"date_added":"2025-06-02","due_date":"2025-06-23","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":0.03536,"percentile":0.89219,"score_date":"2026-10-23"},"published_at":"2025-04-25T18:27:44.244Z","modified_at":"2026-02-26T18:28:01.567Z","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-2025-3935","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-02-26T18:28:01.567Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2025-3935","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.connectwise.com/company/trust/security-bulletins/screenconnect-security-patch-2025.4"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-3935","source":"CISA KEV"},{"source":"CVE List","url":"https://www.connectwise.com/company/trust/advisories"},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3935","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2025-06-06T03:55:32.340641Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-02-26T18:28:01.567Z","content_hash":"2d023105a4662a23fdd6fe7af9951a7a0e190339411157a69ef2a54e27f9bc43"}}