CVE-2026-27653

MEDIUMNVD 6.76.7—
EchelonGraph scoreMEDIUM confidence

Score 6.7 from GitHub Security Advisory published 2026-02-27. NVD baseline CVSS 6.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.7Exploit: None knownExposed: 0

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

The installers for multiple products provided by Soliton Systems K.K. contain an issue with incorrect default permissions, which may allow arbitrary code to be executed with SYSTEM privileges.

CVSS v3
6.7
EG Score
6.7(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity67% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
0%
KEV
Not listed

Published

February 27, 2026

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

Soliton SecureWorkspace・Soliton SecureBrowser II(Windows版)・Soliton SecureBrowser for OneGate(Windows版) における脆弱性について | サポート | 株式会社ソリトンシステムズ

https://www.soliton.co.jp/support/2026/006679.html
generic

JVN#41357120: Improper file access permission settings in the installers for multiple Soliton Systems products

https://jvn.jp/en/jp/JVN41357120/

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 3× in last 7d / 18× 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. 2026-09-17 19:30 UTCEPSS rescore
  2. 2026-09-16 14:08 UTCEPSS rescore
  3. 2026-09-16 05:15 UTCEPSS rescore
  4. 2026-09-13 16:47 UTCEPSS rescore
  5. 2026-09-11 14:52 UTCEPSS rescore
  6. 2026-09-10 09:34 UTCEPSS rescore
  7. 2026-09-08 22:00 UTCEPSS rescore
  8. 2026-09-07 16:01 UTCEPSS rescore
  9. 2026-09-06 13:47 UTCEPSS rescore
  10. 2026-09-06 13:47 UTCEPSS rescore
  11. 2026-09-04 05:06 UTCEPSS rescore
  12. 2026-09-02 14:11 UTCEPSS rescore
  13. 2026-09-01 13:53 UTCEPSS rescore
  14. 2026-08-27 14:25 UTCEPSS rescore
  15. 2026-08-26 14:46 UTCEPSS rescore
  16. 2026-08-25 13:48 UTCEPSS rescore
  17. 2026-08-23 00:19 UTCEPSS rescore
  18. 2026-08-21 23:49 UTCEPSS rescore
  19. 2026-08-16 02:14 UTCEPSS rescore
  20. 2026-08-15 01:30 UTCEPSS rescore
  21. 2026-08-14 08:51 UTCEG score recompute
  22. 2026-08-14 08:51 UTCGHSA enrichment
  23. 2026-08-13 22:00 UTCEPSS rescore
  24. 2026-08-13 00:48 UTCGHSA enrichment
  25. 2026-08-11 07:42 UTCGHSA enrichment
Show 24 more
  1. 2026-08-10 08:30 UTCEG score recompute
  2. 2026-08-10 08:30 UTCGHSA enrichment
  3. 2026-08-09 13:46 UTCEPSS rescore
  4. 2026-08-09 08:29 UTCEG score recompute
  5. 2026-08-09 08:29 UTCGHSA enrichment
  6. 2026-08-08 16:37 UTCEPSS rescore
  7. 2026-08-07 20:29 UTCEG score recompute
  8. 2026-08-07 20:29 UTCGHSA enrichment
  9. 2026-08-06 13:46 UTCEPSS rescore
  10. 2026-08-06 02:55 UTCEG score recompute
  11. 2026-08-06 02:55 UTCGHSA enrichment
  12. 2026-08-05 19:17 UTCEPSS rescore
  13. 2026-08-04 15:10 UTCEPSS rescore
  14. 2026-08-04 04:54 UTCEG score recompute
  15. 2026-08-04 04:54 UTCGHSA enrichment
  16. 2026-08-03 10:36 UTCEPSS rescore
  17. 2026-08-02 19:23 UTCEG score recompute
  18. 2026-08-02 19:23 UTCGHSA enrichment
  19. 2026-08-02 02:26 UTCEPSS rescore
  20. 2026-08-01 04:16 UTCEPSS rescore
  21. 2026-07-30 16:27 UTCEPSS rescore
  22. 2026-07-28 15:36 UTCEPSS rescore
  23. 2026-07-27 13:34 UTCEG score recompute
  24. 2026-07-27 13:34 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-27653?
CVE-2026-27653 is a medium vulnerability published on February 27, 2026. The installers for multiple products provided by Soliton Systems K.K. contain an issue with incorrect default permissions, which may allow arbitrary code to be executed with SYSTEM privileges.
When was CVE-2026-27653 disclosed?
CVE-2026-27653 was first published in the National Vulnerability Database on February 27, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27653 actively exploited?
CVE-2026-27653 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 99.6% of all scored CVEs.
What is the CVSS score of CVE-2026-27653?
CVE-2026-27653 has a CVSS v3 base score of 6.7 (NVD).
How do I remediate CVE-2026-27653?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27653, 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-2026-27653

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