{"schema":"threatline.record/2","record":{"id":"CVE-2023-29552","aliases":[],"summary":"Service Location Protocol (SLP) Denial-of-Service Vulnerability","details":"The Service Location Protocol (SLP) contains a denial-of-service (DoS) vulnerability that could allow an unauthenticated, remote attacker to register services and use spoofed UDP traffic to conduct a denial-of-service (DoS) attack with a significant amplification factor.","categories":["Unclassified"],"product":"Service Location Protocol (SLP)","vendor":"IETF","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-29552","source_modified_at":"2025-10-21T23:05:48.255Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"n/a","vendor":"n/a","versions":[{"version":"n/a","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":7.5,"severity":"High","kev":{"listed":true,"date_added":"2023-11-08","due_date":"2023-11-29","required_action":"Apply mitigations per vendor instructions or disable SLP service or port 427/UDP on all systems running on untrusted networks, including those directly connected to the Internet.","ransomware_campaign_use":"Unknown"},"epss":{"probability":0.63975,"percentile":0.99226,"score_date":"2026-10-23"},"published_at":"2023-04-25T00:00:00.000Z","modified_at":"2025-10-21T23:05:48.255Z","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-2023-29552","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2025-10-21T23:05:48.255Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2023-29552","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-29552","source":"CISA KEV"},{"source":"CVE List","url":"https://datatracker.ietf.org/doc/html/rfc2608","tags":["x_transferred"]},{"source":"CVE List","url":"https://www.bitsight.com/blog/new-high-severity-vulnerability-cve-2023-29552-discovered-service-location-protocol-slp","tags":["x_transferred"]},{"source":"CVE List","url":"https://blogs.vmware.com/security/2023/04/vmware-response-to-cve-2023-29552-reflective-denial-of-service-dos-amplification-vulnerability-in-slp.html","tags":["x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/news-events/alerts/2023/04/25/abuse-service-location-protocol-may-lead-dos-attacks","tags":["x_transferred"]},{"source":"CVE List","url":"https://www.suse.com/support/kb/doc/?id=000021051","tags":["x_transferred"]},{"source":"CVE List","url":"https://curesec.com/blog/article/CVE-2023-29552-Service-Location-Protocol-Denial-of-Service-Amplification-Attack-212.html","tags":["x_transferred"]},{"source":"CVE List","url":"https://github.com/curesec/slpload","tags":["x_transferred"]},{"source":"CVE List","url":"https://security.netapp.com/advisory/ntap-20230426-0001/","tags":["x_transferred"]},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-29552","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":"partial","assessed_at":"2025-01-28T21:15:30.516372Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2025-10-21T23:05:48.255Z","content_hash":"04106ba2fa597b92e96ce0eccbdf75a941a6bd5db10971d234ba6059c0b85406"}}