CVE-2026-4793

HIGHNVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-08-03. NVD baseline CVSS 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.3EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 7.3Exploit: None knownExposed services: Not assessed

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

An incorrect default permissions vulnerability in Synology Assistant before 7.0.7-50095 allows local users to read or write arbitrary files and conduct denial-of-service during installation.

CVSS v3
7.3
EG Score
7.3HIGHmedium confidence
EG Risk
33
EG Risk 33/100CISA SSVC

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
Severity73% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.1%
EPSS %ILE
3rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 3, 2026

Last Modified

August 21, 2026

Advisory Details (1)

Auto-updated Aug 3, 2026
No patch confirmed yet.
generic

Synology_SA_26_12 | Synology Inc.

https://www.synology.com/en-global/security/advisory/Synology_SA_26_12

Vendor Advisories for CVE-2026-4793(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 17× in last 7d / 85× 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 212 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-4793?
CVE-2026-4793 is a high vulnerability published on August 3, 2026. An incorrect default permissions vulnerability in Synology Assistant before 7.0.7-50095 allows local users to read or write arbitrary files and conduct denial-of-service during installation.
When was CVE-2026-4793 disclosed?
CVE-2026-4793 was first published on August 3, 2026, with the most recent update on August 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4793 actively exploited?
CVE-2026-4793 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-4793?
CVE-2026-4793 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-4793?
No fix for CVE-2026-4793 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-4793 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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