CVE-2026-39929

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-29. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
69.5%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 1, 2026

Advisory Details (5)

Auto-updated May 29, 2026
No patch confirmed yet.
generic

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

https://www.vulncheck.com/advisories/lakeside-systrack-agent-lsiagent-exe-out-of-bounds-read-via-udp
generic

11.5.0.xxx Hotfix Agent Release Notes

https://documentation.lakesidesoftware.com/docs/1150xxx-hotfix-agent-release-notes
generic

11.4.0.xxx Hotfix Agent Release Notes

https://documentation.lakesidesoftware.com/docs/1140xxx-hotfix-agent-release-notes
generic

11.3.0.xxx Hotfix Agent Release Notes

https://documentation.lakesidesoftware.com/docs/1130xxx-hotfix-agent-release-notes
generic

11.2.1.28 Hotfix Agent Release Notes

https://documentation.lakesidesoftware.com/docs/112128-hotfix-agent-release-notes

Vendor Advisories for CVE-2026-39929(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 77× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 172 total refreshes for this CVE.

  1. 2026-07-16 02:36 UTCEG score recompute
  2. 2026-07-16 02:36 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 16:57 UTCEPSS rescore
  5. 2026-07-15 02:00 UTCEPSS rescore
  6. 2026-07-13 22:30 UTCEPSS rescore
  7. 2026-07-13 06:13 UTCEPSS rescore
  8. 2026-07-13 06:13 UTCEPSS rescore
  9. 2026-07-12 05:46 UTCEPSS rescore
  10. 2026-07-11 18:48 UTCEG score recompute
  11. 2026-07-11 18:48 UTCGHSA enrichment
  12. 2026-07-11 08:27 UTCEPSS rescore
  13. 2026-07-09 19:10 UTCEPSS rescore
  14. 2026-07-08 17:44 UTCEG score recompute
  15. 2026-07-08 17:44 UTCGHSA enrichment
  16. 2026-07-08 15:15 UTCEPSS rescore
  17. 2026-07-07 13:46 UTCEPSS rescore
  18. 2026-07-06 16:27 UTCEPSS rescore
  19. 2026-07-06 16:27 UTCEPSS rescore
  20. 2026-07-06 02:23 UTCEPSS rescore
  21. 2026-07-06 02:23 UTCEPSS rescore
  22. 2026-07-05 02:30 UTCEPSS rescore
  23. 2026-07-04 06:31 UTCEPSS rescore
  24. 2026-07-02 22:39 UTCEG score recompute
  25. 2026-07-02 22:38 UTCGHSA enrichment
Show 75 more
  1. 2026-07-02 10:06 UTCEG score recompute
  2. 2026-07-02 10:06 UTCGHSA enrichment
  3. 2026-07-01 15:06 UTCEPSS rescore
  4. 2026-07-01 14:52 UTCEG score recompute
  5. 2026-07-01 14:52 UTCGHSA enrichment
  6. 2026-07-01 02:20 UTCEG score recompute
  7. 2026-07-01 02:20 UTCGHSA enrichment
  8. 2026-06-30 23:22 UTCEPSS rescore
  9. 2026-06-30 02:00 UTCEG score recompute
  10. 2026-06-30 02:00 UTCGHSA enrichment
  11. 2026-06-29 14:06 UTCEPSS rescore
  12. 2026-06-29 13:34 UTCEG score recompute
  13. 2026-06-29 13:34 UTCGHSA enrichment
  14. 2026-06-28 19:12 UTCEG score recompute
  15. 2026-06-28 19:12 UTCGHSA enrichment
  16. 2026-06-28 14:07 UTCEPSS rescore
  17. 2026-06-28 06:37 UTCEG score recompute
  18. 2026-06-28 06:37 UTCGHSA enrichment
  19. 2026-06-28 04:56 UTCEPSS rescore
  20. 2026-06-27 17:52 UTCEG score recompute
  21. 2026-06-27 17:52 UTCGHSA enrichment
  22. 2026-06-27 05:25 UTCEG score recompute
  23. 2026-06-27 05:25 UTCGHSA enrichment
  24. 2026-06-27 03:08 UTCEPSS rescore
  25. 2026-06-26 16:37 UTCEG score recompute
  26. 2026-06-26 16:37 UTCGHSA enrichment
  27. 2026-06-25 20:07 UTCEG score recompute
  28. 2026-06-25 20:07 UTCGHSA enrichment
  29. 2026-06-25 13:49 UTCEPSS rescore
  30. 2026-06-25 13:49 UTCEPSS rescore
  31. 2026-06-25 07:40 UTCEG score recompute
  32. 2026-06-25 07:40 UTCGHSA enrichment
  33. 2026-06-24 16:12 UTCEG score recompute
  34. 2026-06-24 16:12 UTCGHSA enrichment
  35. 2026-06-24 14:05 UTCEPSS rescore
  36. 2026-06-23 21:33 UTCEPSS rescore
  37. 2026-06-22 14:25 UTCEPSS rescore
  38. 2026-06-22 14:25 UTCEPSS rescore
  39. 2026-06-21 14:56 UTCEPSS rescore
  40. 2026-06-21 14:56 UTCEPSS rescore
  41. 2026-06-21 01:59 UTCEPSS rescore
  42. 2026-06-19 19:25 UTCEPSS rescore
  43. 2026-06-18 23:49 UTCEG score recompute
  44. 2026-06-18 23:49 UTCGHSA enrichment
  45. 2026-06-18 17:52 UTCEPSS rescore
  46. 2026-06-18 17:52 UTCEPSS rescore
  47. 2026-06-17 17:53 UTCEPSS rescore
  48. 2026-06-17 17:47 UTCEG score recompute
  49. 2026-06-17 17:47 UTCGHSA enrichment
  50. 2026-06-17 03:58 UTCEG score recompute
  51. 2026-06-17 03:58 UTCGHSA enrichment
  52. 2026-06-16 17:52 UTCEPSS rescore
  53. 2026-06-16 15:32 UTCEG score recompute
  54. 2026-06-16 15:32 UTCGHSA enrichment
  55. 2026-06-16 01:49 UTCEG score recompute
  56. 2026-06-16 01:49 UTCGHSA enrichment
  57. 2026-06-15 17:49 UTCEPSS rescore
  58. 2026-06-15 13:22 UTCEG score recompute
  59. 2026-06-15 13:22 UTCGHSA enrichment
  60. 2026-06-15 00:56 UTCEG score recompute
  61. 2026-06-15 00:56 UTCGHSA enrichment
  62. 2026-06-14 23:18 UTCEPSS rescore
  63. 2026-06-14 12:29 UTCEG score recompute
  64. 2026-06-14 12:29 UTCGHSA enrichment
  65. 2026-06-14 00:03 UTCEG score recompute
  66. 2026-06-14 00:03 UTCGHSA enrichment
  67. 2026-06-13 23:00 UTCEPSS rescore
  68. 2026-06-13 11:36 UTCEG score recompute
  69. 2026-06-13 11:36 UTCGHSA enrichment
  70. 2026-06-12 23:12 UTCEPSS rescore
  71. 2026-06-12 23:12 UTCEPSS rescore
  72. 2026-06-12 22:59 UTCEG score recompute
  73. 2026-06-12 22:59 UTCGHSA enrichment
  74. 2026-06-12 10:33 UTCEG score recompute
  75. 2026-06-12 10:33 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-39929?
CVE-2026-39929 is a high vulnerability published on May 28, 2026. 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…
When was CVE-2026-39929 disclosed?
CVE-2026-39929 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-39929 actively exploited?
CVE-2026-39929 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 69.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-39929?
CVE-2026-39929 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-39929?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-39929, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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