Packetbeat 8.19.9, 9.1.9, and 9.2.3 Security Update (ESA-2025-30)

Announcements Security Announcements
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Packetbeat Improper Bounds Check (ESA-2025-30)

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 Versions:

  • 7.x: All versions
  • 8.x: All versions from 8.0.0 up to and including 8.19.8
  • 9.x:
    • All versions from 9.0.0 up to and including 9.1.8
    • All versions from 9.2.0 up to and including 9.2.2

Affected Configurations:

Users using memcached collection

Solutions and Mitigations:

The issue is resolved in version 8.19.9, 9.1.9, and 9.2.3.

For Users that Cannot Upgrade:

Users can disable memcached collection in the Network Packet Capture integration if they are using Elastic Agent and would like other network collections to continue.

Severity: CVSSv3.1: 6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVE ID: CVE-2025-68381