CVE-2026-59835

HIGHPre-NVD 7.78.6▲
EchelonGraph scoreHIGH confidence

Score 8.6 from GitHub Security Advisory (severity: HIGH) published 2026-07-14. the CNA's CVSS baseline 7.7; sources differ by 0.9.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:fortinet, epss, ghsa
Trending — 3 sources updated this week
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.7Exploit: None knownExposed: 0

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

A exposure of resource to wrong sphere vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.2, FortiSandbox 4.4.3 through 4.4.8 may allow an unauthenticated attacker to access the VNC server of VMs performing scanning via network requests.

CVSS v3
7.7
EG Score
8.6(high)
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
Severity86% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
37%
KEV
Not listed

Published

July 14, 2026

Last Modified

July 16, 2026

Advisory Details (1)

Auto-updated Jul 14, 2026
No patch confirmed yet.
generic

PSIRT | FortiGuard Labs

https://fortiguard.fortinet.com/psirt/FG-IR-26-145

Vendor Advisories for CVE-2026-59835(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 21× in last 7d / 39× 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.

  1. 2026-07-28 15:37 UTCEPSS rescore
  2. 2026-07-28 07:24 UTCGHSA enrichment
  3. 2026-07-27 20:18 UTCEG score recompute
  4. 2026-07-27 20:18 UTCGHSA enrichment
  5. 2026-07-27 14:14 UTCEPSS rescore
  6. 2026-07-27 09:26 UTCGHSA enrichment
  7. 2026-07-26 22:37 UTCEG score recompute
  8. 2026-07-26 22:37 UTCGHSA enrichment
  9. 2026-07-26 14:54 UTCEPSS rescore
  10. 2026-07-26 14:54 UTCEPSS rescore
  11. 2026-07-26 11:46 UTCEG score recompute
  12. 2026-07-26 11:46 UTCGHSA enrichment
  13. 2026-07-25 14:18 UTCEPSS rescore
  14. 2026-07-25 14:18 UTCEPSS rescore
  15. 2026-07-24 14:18 UTCEPSS rescore
  16. 2026-07-24 14:18 UTCEPSS rescore
  17. 2026-07-23 14:18 UTCEPSS rescore
  18. 2026-07-23 14:18 UTCEPSS rescore
  19. 2026-07-23 03:21 UTCEG score recompute
  20. 2026-07-22 14:08 UTCEPSS rescore
  21. 2026-07-22 14:08 UTCEPSS rescore
  22. 2026-07-21 15:25 UTCEPSS rescore
  23. 2026-07-21 15:25 UTCEPSS rescore
  24. 2026-07-20 17:08 UTCEPSS rescore
  25. 2026-07-19 02:29 UTCEPSS rescore
Show 14 more
  1. 2026-07-18 10:04 UTCEPSS rescore
  2. 2026-07-16 21:52 UTCGHSA enrichment
  3. 2026-07-16 17:03 UTCEPSS rescore
  4. 2026-07-16 11:03 UTCGHSA enrichment
  5. 2026-07-16 07:53 UTCMITRE cvelistV5CVSS v3 → 7.7
  6. 2026-07-16 00:12 UTCGHSA enrichment
  7. 2026-07-15 16:57 UTCEPSS rescore
  8. 2026-07-15 16:57 UTCEPSS rescore
  9. 2026-07-15 13:22 UTCGHSA enrichment
  10. 2026-07-15 02:32 UTCEG score recompute▲ 0.90
  11. 2026-07-15 02:32 UTCGHSA enrichment
  12. 2026-07-14 17:20 UTCNVD updateCVSS v3 → 8.6
  13. 2026-07-14 15:42 UTCEG score recompute
  14. 2026-07-14 15:40 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-59835?
CVE-2026-59835 is a high vulnerability published on July 14, 2026. A exposure of resource to wrong sphere vulnerability in Fortinet FortiSandbox 5.0.0 through 5.0.2, FortiSandbox 4.4.3 through 4.4.8 may allow an unauthenticated attacker to access the VNC server of VMs performing scanning via network requests.
When was CVE-2026-59835 disclosed?
CVE-2026-59835 was first published in the National Vulnerability Database on July 14, 2026, with the most recent update on July 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59835 actively exploited?
CVE-2026-59835 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 62.5% of all scored CVEs.
What is the CVSS score of CVE-2026-59835?
CVE-2026-59835 has a CVSS v4.0 base score of 7.7 (CNA self-assessment; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.6.
How do I remediate CVE-2026-59835?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59835, 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-2026-59835

Explore →

Is Your Infrastructure Affected by CVE-2026-59835?

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

Start Free Scan →Browse All CVEs