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CVE-2023-29552: Service Location Protocol (SLP) Denial-of-Service Vulnerability
IETF Service Location Protocol (SLP) · in CISA KEV since 2023-11-08
2023-11-08added to KEV
2023-11-29federal remediation due date
65.87%EPSS exploit probability (30 days) 99.2th percentile
7.5 HIGHCVSS 3.1
Unknownknown ransomware use
197days from NVD publication to KEV
What it is
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.
Required action (CISA)
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.
| CWE | — |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD published | 2023-04-25 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2023-29552.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.