CVE-2026-8363

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-27. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

A stack-based buffer overflow condition exists in WOSDeviceDropFolder.dll when processing a long URL path starting with /resources:

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

May 27, 2026

Last Modified

May 29, 2026

Advisory Details (1)

Auto-updated Jul 26, 2026
No patch confirmed yet.
generic

Gladinet Triofox Server Agent Multiple Vulnerabilities - Research Advisory | Tenable®

https://www.tenable.com/security/research/TRA-2026-45

Vendor Advisories for CVE-2026-8363(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 54× 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 200 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8363?
CVE-2026-8363 is a critical vulnerability published on May 27, 2026. A stack-based buffer overflow condition exists in WOSDeviceDropFolder.dll when processing a long URL path starting with /resources:
When was CVE-2026-8363 disclosed?
CVE-2026-8363 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on May 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8363 actively exploited?
CVE-2026-8363 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 74.1% of all scored CVEs.
What is the CVSS score of CVE-2026-8363?
CVE-2026-8363 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-8363?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8363, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-8363

Explore →

Is Your Infrastructure Affected by CVE-2026-8363?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs