A buffer overflow vulnerability (CVE-2025-68381) in Packetbeat allows remote unauthenticated attackers to crash the application or cause resource exhaustion via crafted UDP packets. The vulnerability affects all 7.x versions, 8.x versions up to 8.19.8, and multiple 9.x version ranges. It specifically impacts users with memcached collection enabled and has a CVSS score of 6.5 (Medium). The issue is resolved in versions 8.19.9, 9.1.9, and 9.2.3. Users who cannot upgrade can disable memcached collection as a mitigation.