CVE-2026-39929: Lakeside Software, LLC SysTrack Agent · Out-of-bounds Read
Affects Lakeside Software, LLC SysTrack AgentSource CVE Database V5
Not known to be exploited · CVSS 8.7 High.
Data as of 29 Oct 2026, 19:04 UTC
- EPSS
- 1.4% chance of exploitation in 30 days – higher than 72% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 28 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Lakeside Software, LLC.SysTrack Agent | Affected
| Fixed in– |
AI-suggested
Until an official fix is released, organizations should consider restricting or monitoring UDP traffic to the SysTrack Agent, especially packets targeting Command ID 30 handlers, to reduce exposure. No official remediation or temporary fix has been documented.
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.
References
- documentation.lakesidesoftware.com/docs/112128-hotfix-agent-release-notes (opens in a new tab)
- documentation.lakesidesoftware.com/docs/1130xxx-hotfix-agent-release-notes (opens in a new tab)
- documentation.lakesidesoftware.com/docs/1140xxx-hotfix-agent-release-notes (opens in a new tab)
- documentation.lakesidesoftware.com/docs/1150xxx-hotfix-agent-release-notes (opens in a new tab)
- vulncheck.com/advisories/lakeside-systrack-agent-lsiagent-exe-out-of-bounds-read-via-udp (opens in a new tab)