CVE-2016-20037

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
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.4Exploit: Elevated riskExposed: 0

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

xwpe 1.5.30a-2.1 and prior contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying overly long input strings that exceed buffer boundaries. Attackers can craft malicious command-line arguments with 262 bytes of junk data followed by shellcode to overwrite the instruction pointer and achieve code execution or denial of service.

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 PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

March 28, 2026

Last Modified

June 17, 2026

Advisory Details (3)

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

xwpe 1.5.30a-2.1 Stack-based Buffer Overflow | Advisories | VulnCheck

https://www.vulncheck.com/advisories/xwpe-30a-stack-based-buffer-overflow
generic🟡 PoC Available

xWPE 1.5.30a-2.1 - Local Buffer Overflow - Linux local Exploit

https://www.exploit-db.com/exploits/39285
generic

Xwpe-ALPHA Project

http://www.identicalsoftware.com/xwpe

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 3× in last 7d / 19× 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 163 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2016-20037?
CVE-2016-20037 is a high vulnerability published on March 28, 2026. xwpe 1.5.30a-2.1 and prior contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying overly long input strings that exceed buffer boundaries. Attackers can craft malicious command-line arguments with 262 bytes of junk data followed by…
When was CVE-2016-20037 disclosed?
CVE-2016-20037 was first published in the National Vulnerability Database on March 28, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-20037 actively exploited?
CVE-2016-20037 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 95.7% of all scored CVEs.
What is the CVSS score of CVE-2016-20037?
CVE-2016-20037 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2016-20037?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-20037, 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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