ClosedPatched

IETF Service Location Protocol (SLP): Denial-of-Service (CVE-2023-29552)

IETF Service Location Protocol (SLP)

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. Added to CISA KEV on 2023-11-08.

Why this severity: CVSS 7.5 (NVD), actively exploited (CISA KEV)

Started: Nov 8, 2023
Closed: Nov 8, 2023
CVE: CVE-2023-29552

Follow this incident

Updated Nov 8, 2023

Affected

See vendor advisory / CISA notes (versions not always listed in KEV feed)

Fixed in

See vendor advisory linked in sources

Timeline1

Nov 8, 2023
CISA added CVE-2023-29552 to the KEV catalog (due 2023-11-29).

Advisories2

Notes & caveats

Derived from CISA KEV JSON feed catalogVersion 2026.10.21. Exact affected/fixed version strings are not always in the KEV record — verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier).

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