CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 6.4. It affects Exchange. Its EPSS score suggests a 32.1% probability of exploitation in the next 30 days. It may be remotely exploitable. It may lead to a denial-of-service condition.
CVE
CVE-2009-3563
Severity
MEDIUM
CVSS
6.4
EPSS
32.06%
Exchange
Original NVD Description
ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.