{"id":"CVE-2023-29552","aliases":["EUVD-2023-33094","GHSA-288r-5qm5-qp55","UBUNTU-CVE-2023-29552"],"status":"published","title":"The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to...","description":"The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.63975,"percentile":0.9923,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":false,"fix_available":false},"published":"2023-04-24T00:00:00Z","modified":"2026-06-17T05:50:32Z","kev":{"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.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2023-11-08"},{"source":"kev","since":"2023-11-08"}],"affected":[{"source":"osv","ecosystem":"Ubuntu:Pro:14.04:LTS","package":"openslp-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.1-9","1.2.1-9ubuntu0.2","1.2.1-9ubuntu0.3","1.2.1-9ubuntu0.3+esm1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"openslp-dfsg","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2.1-10ubuntu1","1.2.1-11","1.2.1-11ubuntu0.16.04.1","1.2.1-11ubuntu0.16.04.2"]}],"products":[{"vendor":"ietf","product":"service location protocol (slp)"},{"vendor":"netapp","product":"smi-s_provider"},{"vendor":"service_location_protocol_project","product":"service_location_protocol"},{"vendor":"suse","product":"linux_enterprise_server"},{"vendor":"suse","product":"manager_server"},{"vendor":"vmware","product":"esxi"}],"references":[{"url":"https://datatracker.ietf.org/doc/html/rfc2608","tags":["x_transferred","Technical Description"]},{"url":"https://www.bitsight.com/blog/new-high-severity-vulnerability-cve-2023-29552-discovered-service-location-protocol-slp","tags":["x_transferred","Exploit","Third Party Advisory"]},{"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","Third Party Advisory"]},{"url":"https://www.cisa.gov/news-events/alerts/2023/04/25/abuse-service-location-protocol-may-lead-dos-attacks","tags":["x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://www.suse.com/support/kb/doc/?id=000021051","tags":["x_transferred","Third Party Advisory"]},{"url":"https://curesec.com/blog/article/CVE-2023-29552-Service-Location-Protocol-Denial-of-Service-Amplification-Attack-212.html","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://github.com/curesec/slpload","tags":["x_transferred","Product"]},{"url":"https://security.netapp.com/advisory/ntap-20230426-0001/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-29552","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-29552"},{"url":"https://security.netapp.com/advisory/ntap-20230426-0001"},{"url":"https://github.com/advisories/GHSA-288r-5qm5-qp55"},{"url":"https://ubuntu.com/security/CVE-2023-29552","tags":["report"]},{"url":"https://kb.cert.org/vuls/id/496472","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-29552","tags":["report"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-29552","description":"The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.","status":"published","published":"2023-04-25T00:00:00Z","modified":"2025-10-21T23:05:48.255Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"updated_at":"2026-11-02T14:35:28.643185Z"}],"euvd":[{"id":"EUVD-2023-33094","description":"The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.","status":"published","published":"2023-04-25T00:00:00Z","modified":"2025-10-21T23:05:48Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"exploited_since":"2023-11-08","updated_at":"2026-11-02T20:31:27.312976Z"}],"ghsa":[{"id":"GHSA-288r-5qm5-qp55","title":"The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to...","description":"The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.","status":"published","published":"2023-04-25T18:30:23Z","modified":"2025-10-22T00:33:51Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:04:08.734574Z"}],"kev":[{"id":"CVE-2023-29552","title":"Service Location Protocol (SLP) Denial-of-Service Vulnerability","description":"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.","kev":{"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.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:16.234141Z"}],"nvd":[{"id":"CVE-2023-29552","description":"The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.","status":"published","published":"2023-04-25T16:15:09.537Z","modified":"2026-06-17T05:50:32.263Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"updated_at":"2026-11-02T14:07:59.151142Z"}],"osv":[{"id":"UBUNTU-CVE-2023-29552","description":"The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.","status":"published","published":"2023-04-24T00:00:00Z","modified":"2026-04-22T14:06:00.645434Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:54:20.997471Z"}]}}