CVE-2026-9775

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 1.5%, top 27% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 6.5Exploit: None knownExposed: 0

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

ATEN Unizon uploadSSL Directory Traversal Arbitrary File Deletion Vulnerability. This vulnerability allows remote attackers to delete arbitrary files on affected installations of ATEN Unizon. Authentication is required to exploit this vulnerability.

The specific flaw exists within the uploadSSL method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to delete files or create a denial-of-service condition on the system. Was ZDI-CAN-28503.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity65% × 45%
Exploitation2% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
73%
KEV
Not listed

Published

June 24, 2026

Last Modified

June 27, 2026

Advisory Details (2)

Auto-updated Jun 25, 2026
No patch confirmed yet.
generic

ZDI-26-379 - TrendAI™ Zero Day Initiative™ (ZDI)

https://www.zerodayinitiative.com/advisories/ZDI-26-379/
generic

2026-SA-3 | ATEN Corporate Headquarters

https://www.aten.com/global/en/supportcenter/info/security-advisory/28/

Vendor Advisories for CVE-2026-9775(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 6× in last 7d / 53× 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 156 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-9775?
CVE-2026-9775 is a medium vulnerability published on June 24, 2026. ATEN Unizon uploadSSL Directory Traversal Arbitrary File Deletion Vulnerability. This vulnerability allows remote attackers to delete arbitrary files on affected installations of ATEN Unizon. Authentication is required to exploit this vulnerability. The specific flaw exists within the uploadSSL…
When was CVE-2026-9775 disclosed?
CVE-2026-9775 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on June 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9775 actively exploited?
CVE-2026-9775 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 27.0% of all scored CVEs.
What is the CVSS score of CVE-2026-9775?
CVE-2026-9775 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-9775?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9775, 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

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