Lakeside SysTrack Agent LsiAgent.exe Out-of-Bounds Read via UDP
Summary
| CVE | CVE-2026-39929 |
|---|---|
| State | PUBLISHED |
| Assigner | VulnCheck |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-28 22:16:58 UTC |
| Updated | 2026-05-28 22:16:58 UTC |
| 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. |
Risk And Classification
Primary CVSS: v4.0 8.7 HIGH from [email protected]
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/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
EPSS: 0.001150000 probability, percentile 0.299180000 (date 2026-05-30)
Problem Types: CWE-125 | CWE-754 | CWE-125 Out-of-bounds Read | CWE-754 Improper Check for Unusual or Exceptional Conditions
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 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/E:X/C... |
| 4.0 | CNA | CVSS | 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 |
| 3.1 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | CNA | CVSS | 7.5 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
CVSS v4.0 Breakdown
Attack Vector
NetworkAttack Complexity
LowAttack Requirements
NonePrivileges Required
NoneUser Interaction
NoneConfidentiality
NoneIntegrity
NoneAvailability
HighSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/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
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Lakeside Software LLC. | SysTrack Agent | affected 11.2.1.28 custom | Not specified |
| CNA | Lakeside Software LLC. | SysTrack Agent | affected 11.3.0.xxx 11.3.0.38 custom | Not specified |
| CNA | Lakeside Software LLC. | SysTrack Agent | affected 11.4.0.xxx 11.4.0.24 custom | Not specified |
| CNA | Lakeside Software LLC. | SysTrack Agent | affected 11.5.0.xxx 11.5.0.15 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.vulncheck.com/advisories/lakeside-systrack-agent-lsiagent-exe-out-of-bounds... | [email protected] | www.vulncheck.com | |
| documentation.lakesidesoftware.com/docs/1150xxx-hotfix-agent-release-notes | [email protected] | documentation.lakesidesoftware.com | |
| documentation.lakesidesoftware.com/docs/1130xxx-hotfix-agent-release-notes | [email protected] | documentation.lakesidesoftware.com | |
| documentation.lakesidesoftware.com/docs/112128-hotfix-agent-release-notes | [email protected] | documentation.lakesidesoftware.com | |
| documentation.lakesidesoftware.com/docs/1140xxx-hotfix-agent-release-notes | [email protected] | documentation.lakesidesoftware.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Austin A. DeFrancesco (DefCesco) (en)
CNA: VulnCheck (en)
There are currently no legacy QID mappings associated with this CVE.