Auth bypass in Soliton Securebrowser For Onegate
CVE-2026-27653
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (2.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
- Soliton Securebrowser For Onegate — versions 1.0.0
- Soliton Securebrowser Ii
- Soliton Secureworkspace
- Soliton Systems K.k. Securebrowser For Onegate — versions V1.0.0
- Soliton Systems K.k. Securebrowser Ii — versions V2.0.0 to V2.0.14
- Soliton Systems K.k. Secureworkspace (Formerly Wrappingbox) — versions V1.0.0 to V1.4.7
Weakness classification (CWE)
References
- www.soliton.co.jp/support/2026/006679.html (Vendor Advisory)
- jvn.jp/en/jp/JVN41357120/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2026-27653?
- CVE-2026-27653 is a medium-severity vulnerability in Soliton Securebrowser For Onegate, classified under Incorrect Default Permissions. CVSS score: 6.7/10. Published 2026-02-27.
- How severe is CVE-2026-27653?
- Medium severity. CVSS v3 base score is 6.7 out of 10.