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.
Evidence dossier
CVE-2023-29552
CVE-2023-29552
gen-56ccdaf9Normalized restatement
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.
- State
- PUBLISHED
- Published
- Apr 25, 2023
- Updated
- Oct 21, 2025
- Evidence coverage
- 85%
2026-07-18 · v2026.06.15 · percentile 99.2%
Distinct CVSS assessments remain side by side; none are averaged.
Source comparison
Who said what
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.
Service Location Protocol (SLP) Denial-of-Service Vulnerability
Probability 0.658730000000; percentile 0.991880000000
Applicability
Cited product scope
[{"status": "affected", "version": "n/a"}]unknowncpe:2.3:a:netapp:smi-s_provider:-:*:*:*:*:*:*:*supportedcpe:2.3:a:service_location_protocol_project:service_location_protocol:-:*:*:*:*:*:*:*supportedcpe:2.3:a:suse:manager_server:-:*:*:*:*:*:*:*supportedcpe:2.3:o:suse:linux_enterprise_server:11:-:*:*:*:*:*:*supportedcpe:2.3:o:suse:linux_enterprise_server:12:-:*:*:*:*:*:*supportedcpe:2.3:o:suse:linux_enterprise_server:12:-:*:*:*:sap:*:*supportedcpe:2.3:o:suse:linux_enterprise_server:15:*:*:*:*:-:*:*supportedcpe:2.3:o:suse:linux_enterprise_server:15:*:*:*:*:sap:*:*supportedcpe:2.3:o:vmware:esxi:*:*:*:*:*:*:*:*; end excluding 7.0supportedAssessments
CVSS by origin
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HLimitations and unknowns
- KEV membership is authoritative for the catalog, not proof of exposure in any environment.
- EPSS is a dated model probability and not an individual-environment prediction.
- Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
- NVD-carried upstream facts remain derivative and are not independent corroboration.
- Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
- NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
- Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
- Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.