Missing authentication for critical function exists in SkyBridge MB-A100/110 firmware Ver
Published May 10, 2023
7.5
HIGHCVSS 3.1
EPSS 1.30%
Description
Missing authentication for critical function exists in SkyBridge MB-A100/110 firmware Ver. 4.2.0 and earlier, which may allow a remote unauthenticated attacker to execute some critical functions without authentication, e.g., rebooting the product.
Affected products
-
- Version firmware Ver. 4.2.0 and earlierStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Seiko Solutions Inc. | SkyBridge MB-A100/110 | n/a |
|
Configuration 1
- ≤ 4.2.0
Running on/with
- n/a
Configuration 2
- ≤ 4.2.0
Running on/with
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Jan 28, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2023–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.30% (0.01302) | 69.48th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.30% (0.01302) | 66.64th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.54% (0.01540) | 80.08th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.88% (0.00882) | 83.22th | v3 (v2023.03.01) |
| Jun 11, 2024 | 0.65% (0.00653) | 79.50th | v3 (v2023.03.01) |
| May 16, 2024 | 0.55% (0.00549) | 77.38th | v3 (v2023.03.01) |
| Apr 9, 2024 | 0.27% (0.00274) | 67.59th | v3 (v2023.03.01) |
| May 18, 2023 | 0.19% (0.00193) | 55.65th | v3 (v2023.03.01) |
| May 10, 2023 | 0.07% (0.00075) | 30.76th | v3 (v2023.03.01) |
References (6)
- https://jvn.jp/en/jp/JVN40604023/ Third Party Advisory
- https://www.seiko-sol.co.jp/archives/73969/ Vendor Advisory
- https://www.seiko-sol.co.jp/products/skybridge/skybridge_download/mb-a100/ Product
- https://www.seiko-sol.co.jp/products/skybridge/skybridge_download/mb-a130/ Product
- https://www.seiko-sol.co.jp/products/skybridge/skybridge_download/mb-a200/ Product
- https://www.seiko-sol.co.jp/products/skyspider/skyspider_download/mb-r210/ Product
Change history (0)
No recorded changes yet.