CVE-2026-39929 HIGH

CVE-2026-39929: Lakeside SysTrack Agent LsiAgent.exe Out-of-Bounds Read via UDP

Vendor Lakeside Software, Llc.
Product SysTrack Agent
Weakness CWE-125
Published May 28, 2026
Last update May 29, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Lakeside SysTrack Agent versions prior to 11.2.1.28, 11.3.0.38, 11.4.0.24, 11.5.0.15 contain an out-of-bounds read vulnerability in the Command ID 30 UDP packet handler that allows remote attackers to crash the application by sending a specially crafted UDP packet. Attackers can send a malformed packet with an invalid memory address at offset 0x4 in the payload to trigger an access violation and cause a denial of service.

Key dates

02Disclosure timeline

May 28, 2026 CVE published
May 29, 2026 Record updated