Out-of-bounds Read in Lakeside Software, Llc. Systrack Agent
CVE-2026-39929
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.019 (79.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.019 · change: +0.005
Affected products
- Lakeside Software, Llc. Systrack Agent — versions 0, 11.3.0.xxx, 11.4.0.xxx
Weakness classification (CWE)
References
- documentation.lakesidesoftware.com/docs/112128-hotfix-agent-release-notes (release-notes, patch)
- documentation.lakesidesoftware.com/docs/1130xxx-hotfix-agent-release-notes (release-notes, patch)
- documentation.lakesidesoftware.com/docs/1140xxx-hotfix-agent-release-notes (release-notes, patch)
- documentation.lakesidesoftware.com/docs/1150xxx-hotfix-agent-release-notes (release-notes, patch)
- www.vulncheck.com/advisories/lakeside-systrack-agent-lsiagent-exe-out-of-bounds… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-39929?
- CVE-2026-39929 is a high-severity vulnerability in Lakeside Software, Llc. Systrack Agent, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2026-05-28.
- How severe is CVE-2026-39929?
- High severity. CVSS v3 base score is 7.5 out of 10.