CVE-2016-20038

HIGHNVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2026-03-28. NVD baseline CVSS 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
8.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.4Exploit: NoneExposed: 0

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

yTree 1.94-1.1 contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an excessively long argument to the application. Attackers can craft a malicious command-line argument containing shellcode and a return address to overwrite the stack and execute code in the application context.

CVSS v3
8.4
EG Score
8.4(medium)
EG Risk
54(Track*)
EG Risk 54/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity84% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
7.5%
KEV
Not listed

Published

March 28, 2026

Last Modified

May 1, 2026

Advisory Details (3)

Auto-updated May 1, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

yTree 1.94-1.1 Stack-Based Buffer Overflow | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ytree-stack-based-buffer-overflow
generic🟡 PoC Available

yTree 1.94-1.1 - Local Buffer Overflow (PoC) - Linux dos Exploit

https://www.exploit-db.com/exploits/39406
generic

Ytree Home Page

http://www.han.de/~werner/ytree.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 43× 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 104 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2016-20038?
CVE-2016-20038 is a high vulnerability published on March 28, 2026. yTree 1.94-1.1 contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an excessively long argument to the application. Attackers can craft a malicious command-line argument containing shellcode and a return address to overwrite the…
When was CVE-2016-20038 disclosed?
CVE-2016-20038 was first published in the National Vulnerability Database on March 28, 2026, with the most recent update on May 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-20038 actively exploited?
CVE-2016-20038 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-20038?
CVE-2016-20038 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2016-20038?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-20038, 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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