CVE-2025-68381: Elasticsearch Packetbeat

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Improper Bounds Check (CWE-787) in Packetbeat can allow a remote unauthenticated attacker to exploit a Buffer Overflow (CAPEC-100) and reliably crash the application or cause significant resource exhaustion via a single crafted UDP packet with an invalid fragment sequence number.

Affected products

• Elasticsearch Packetbeat: from 7.0.0, up to and including 7.17.29; from 8.0.0, before 8.19.9 (fixed in 8.19.9); from 9.0.0, before 9.1.9 (fixed in 9.1.9); from 9.2.0, before 9.2.3 (fixed in 9.2.3)

Published 2025-12-18. Last modified 2026-06-17.