CVE-2023-23901 json
Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver.
published 2023-05-10 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-27984
- cvss
- 4.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver. 01.00.05 and earlier, and SkyBridge BASIC MB-A130 firmware Ver. 1.4.1 and earlier, which may allow a remote unauthenticated attacker to eavesdrop on or alter the communication sent to the WebUI of the product.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| CNA | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |
Affected products
- Seiko Solutions Inc. SkyBridge MB-A200 and SkyBridge BASIC MB-A130
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
seiko-sol.co.jp
/archives/73969/
vendor-advisory
-
seiko-sol.co.jp
/products/skybridge/skybridge_download/mb-a100/
product
-
seiko-sol.co.jp
/products/skybridge/skybridge_download/mb-a200/
product
-
seiko-sol.co.jp
/products/skybridge/skybridge_download/mb-a130/
product
-
seiko-sol.co.jp
/products/skyspider/skyspider_download/mb-r210/
product
-
jvn.jp
/en/jp/JVN40604023/
third-party-advisory
Sources
- CVE List CVE-2023-23901
- NVD CVE-2023-23901
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.