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 a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: None knownExposed: 0

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

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
7.3(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity73% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

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 22× in last 7d / 97× 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 177 total refreshes for this CVE.

  1. 2026-09-20 20:57 UTCEG score recompute
  2. 2026-09-20 20:57 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 01:22 UTCEG score recompute
  5. 2026-09-20 01:22 UTCGHSA enrichment
  6. 2026-09-19 13:35 UTCGHSA enrichment
  7. 2026-09-19 01:14 UTCEG score recompute
  8. 2026-09-19 01:13 UTCGHSA enrichment
  9. 2026-09-18 19:28 UTCEPSS rescore
  10. 2026-09-18 13:18 UTCGHSA enrichment
  11. 2026-09-18 01:12 UTCEG score recompute
  12. 2026-09-18 01:12 UTCGHSA enrichment
  13. 2026-09-17 01:15 UTCEG score recompute
  14. 2026-09-17 01:15 UTCGHSA enrichment
  15. 2026-09-16 14:08 UTCEPSS rescore
  16. 2026-09-16 05:19 UTCEG score recompute
  17. 2026-09-16 05:19 UTCGHSA enrichment
  18. 2026-09-16 05:15 UTCEPSS rescore
  19. 2026-09-15 17:07 UTCEG score recompute
  20. 2026-09-15 17:06 UTCGHSA enrichment
  21. 2026-09-15 02:01 UTCGHSA enrichment
  22. 2026-09-14 06:32 UTCGHSA enrichment
  23. 2026-09-13 18:45 UTCEG score recompute
  24. 2026-09-13 18:45 UTCGHSA enrichment
  25. 2026-09-13 16:47 UTCEPSS rescore
Show 75 more
  1. 2026-09-13 06:58 UTCGHSA enrichment
  2. 2026-09-12 18:56 UTCEG score recompute
  3. 2026-09-12 18:56 UTCGHSA enrichment
  4. 2026-09-12 07:08 UTCGHSA enrichment
  5. 2026-09-11 19:20 UTCEG score recompute
  6. 2026-09-11 19:20 UTCGHSA enrichment
  7. 2026-09-11 14:53 UTCEPSS rescore
  8. 2026-09-11 07:03 UTCGHSA enrichment
  9. 2026-09-10 19:16 UTCEG score recompute
  10. 2026-09-10 19:16 UTCGHSA enrichment
  11. 2026-09-10 09:35 UTCEPSS rescore
  12. 2026-09-10 07:29 UTCGHSA enrichment
  13. 2026-09-09 19:41 UTCGHSA enrichment
  14. 2026-09-09 06:47 UTCEG score recompute
  15. 2026-09-09 06:47 UTCGHSA enrichment
  16. 2026-09-08 22:01 UTCEPSS rescore
  17. 2026-09-07 18:59 UTCEG score recompute
  18. 2026-09-07 18:59 UTCGHSA enrichment
  19. 2026-09-07 16:01 UTCEPSS rescore
  20. 2026-09-06 18:20 UTCEG score recompute
  21. 2026-09-06 18:20 UTCGHSA enrichment
  22. 2026-09-06 13:47 UTCEPSS rescore
  23. 2026-09-06 06:32 UTCGHSA enrichment
  24. 2026-09-05 18:41 UTCEG score recompute
  25. 2026-09-05 18:41 UTCGHSA enrichment
  26. 2026-09-05 04:28 UTCEG score recompute
  27. 2026-09-05 04:28 UTCGHSA enrichment
  28. 2026-09-04 10:17 UTCEG score recompute
  29. 2026-09-04 10:17 UTCGHSA enrichment
  30. 2026-09-04 05:06 UTCEPSS rescore
  31. 2026-09-03 20:47 UTCGHSA enrichment
  32. 2026-09-03 08:58 UTCEG score recompute
  33. 2026-09-03 08:58 UTCGHSA enrichment
  34. 2026-09-02 14:12 UTCEPSS rescore
  35. 2026-09-01 22:17 UTCEG score recompute
  36. 2026-09-01 22:17 UTCGHSA enrichment
  37. 2026-09-01 13:54 UTCEPSS rescore
  38. 2026-09-01 04:40 UTCEPSS rescore
  39. 2026-08-31 23:14 UTCGHSA enrichment
  40. 2026-08-30 21:56 UTCEG score recompute
  41. 2026-08-30 21:56 UTCGHSA enrichment
  42. 2026-08-30 19:17 UTCEPSS rescore
  43. 2026-08-30 10:09 UTCEG score recompute
  44. 2026-08-30 10:09 UTCGHSA enrichment
  45. 2026-08-30 01:22 UTCEPSS rescore
  46. 2026-08-29 22:04 UTCEG score recompute
  47. 2026-08-29 22:04 UTCGHSA enrichment
  48. 2026-08-28 21:41 UTCEPSS rescore
  49. 2026-08-28 02:05 UTCEG score recompute
  50. 2026-08-28 02:05 UTCGHSA enrichment
  51. 2026-08-27 14:25 UTCEPSS rescore
  52. 2026-08-27 14:15 UTCGHSA enrichment
  53. 2026-08-27 02:27 UTCEG score recompute
  54. 2026-08-27 02:27 UTCGHSA enrichment
  55. 2026-08-26 14:46 UTCEPSS rescore
  56. 2026-08-26 14:40 UTCGHSA enrichment
  57. 2026-08-26 02:50 UTCGHSA enrichment
  58. 2026-08-25 15:02 UTCEG score recompute
  59. 2026-08-25 15:02 UTCGHSA enrichment
  60. 2026-08-25 13:49 UTCEPSS rescore
  61. 2026-08-25 03:14 UTCGHSA enrichment
  62. 2026-08-24 15:27 UTCEG score recompute
  63. 2026-08-24 15:27 UTCGHSA enrichment
  64. 2026-08-24 03:36 UTCGHSA enrichment
  65. 2026-08-23 15:48 UTCGHSA enrichment
  66. 2026-08-23 04:01 UTCEG score recompute
  67. 2026-08-23 04:01 UTCGHSA enrichment
  68. 2026-08-23 00:19 UTCEPSS rescore
  69. 2026-08-22 16:13 UTCGHSA enrichment
  70. 2026-08-22 04:26 UTCEG score recompute
  71. 2026-08-22 04:26 UTCGHSA enrichment
  72. 2026-08-21 23:49 UTCEPSS rescore
  73. 2026-08-21 16:34 UTCEG score recompute▼ 0.50
  74. 2026-08-21 16:34 UTCGHSA enrichment
  75. 2026-08-21 16:34 UTCNVD updateCVSS v3 → 7.3

Related CVEs(same CWE)

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 in the National Vulnerability Database 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% probability of exploitation in the next 30 days, which ranks it in the top 95.4% of all 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?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4793, 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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