CVE-2026-39929
Lakeside SysTrack Agent LsiAgent.exe Out-of-Bounds Read via UDP
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.
INFO
Published Date :
May 28, 2026, 10:16 p.m.
Last Modified :
July 21, 2026, 10:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-39929
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Lakeside SysTrack Agent to version 11.2.1.28 or later.
- Update Lakeside SysTrack Agent to version 11.3.0.38 or later.
- Update Lakeside SysTrack Agent to version 11.4.0.24 or later.
- Update Lakeside SysTrack Agent to version 11.5.0.15 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-39929.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-39929 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-39929
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-39929 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-39929 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 21, 2026
Action Type Old Value New Value Added Translation Title: SysTrack Agent de Lakeside Software, Description: Versiones de Lakeside SysTrack Agent anteriores a 11.2.1.28, 11.3.0.38, 11.4.0.24, 11.5.0.15 contienen una vulnerabilidad de lectura fuera de límites en el gestor de paquetes UDP con ID de Comando 30 que permite a atacantes remotos bloquear la aplicación enviando un paquete UDP especialmente diseñado. Los atacantes pueden enviar un paquete malformado con una dirección de memoria no válida en el desplazamiento 0x4 en la carga útil para desencadenar una violación de acceso y causar una denegación de servicio. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Lakeside Software, LLC.', 'product': 'SysTrack Agent', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '11.2.1.28', 'versionType': 'custom'}, {'status': 'affected', 'version': '11.3.0.xxx', 'lessThan': '11.3.0.38', 'versionType': 'custom'}, {'status': 'affected', 'version': '11.4.0.xxx', 'lessThan': '11.4.0.24', 'versionType': 'custom'}, {'status': 'affected', 'version': '11.5.0.xxx', 'lessThan': '11.5.0.15', 'versionType': 'custom'}], 'defaultStatus': 'affected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-39929', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-05-29T19:07:03.880257Z'} -
New CVE Received by [email protected]
May. 28, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-125 Added CWE CWE-754 Added Reference https://documentation.lakesidesoftware.com/docs/112128-hotfix-agent-release-notes Added Reference https://documentation.lakesidesoftware.com/docs/1130xxx-hotfix-agent-release-notes Added Reference https://documentation.lakesidesoftware.com/docs/1140xxx-hotfix-agent-release-notes Added Reference https://documentation.lakesidesoftware.com/docs/1150xxx-hotfix-agent-release-notes Added Reference https://www.vulncheck.com/advisories/lakeside-systrack-agent-lsiagent-exe-out-of-bounds-read-via-udp