CVE-2026-39929

Lakeside SysTrack Agent LsiAgent.exe Out-of-Bounds Read via UDP

State: Published
Severity: 8.7 High
Published: May 28, 2026
Updated: May 29, 2026
Reserved: Apr 7, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	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	VulnCheck
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	VulnCheck

Weaknesses

CWE-125 Out-of-bounds Read
CWE-754 Improper Check for Unusual or Exceptional Conditions

Affected Products

Product	Versions
SysTrack AgentLakeside Software, LLC.	before 11.2.1.28Affected 11.3.0.xxx to before 11.3.0.38Affected 11.4.0.xxx to before 11.4.0.24Affected 11.5.0.xxx to before 11.5.0.15Affected

References

https://documentation.lakesidesoftware.com/docs/112128-hotfix-agent-release-notesrelease-notespatch
https://documentation.lakesidesoftware.com/docs/1130xxx-hotfix-agent-release-notesrelease-notespatch
https://documentation.lakesidesoftware.com/docs/1140xxx-hotfix-agent-release-notesrelease-notespatch
https://documentation.lakesidesoftware.com/docs/1150xxx-hotfix-agent-release-notesrelease-notespatch
https://www.vulncheck.com/advisories/lakeside-systrack-agent-lsiagent-exe-out-of-bounds-read-via-udpthird-party-advisory

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