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Vulnerability record · CVE-2023-23906 · published 10 May 2023

CVE-2023-23906: Seiko-sol skybridge mb-a110 firmware missing authentication for critical function vulnerability

SSeiko Sol · Skybridge Mb A110 Firmware

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.

7.5 CVSS 3.1 High EPSS 1.3% · top 30.7% CWE-306 · Missing authentication for critical function
7.5CVSS 3.1 base score
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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
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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-36556Seiko-sol skybridge mb-a100 firmware command injection vulnerabilitySeiko SkyBridge MB-A100/A110 v4.2.0 and below was discovered to contain a command injection vulnerability via the ipAddress parameter at 07system08ex…EPSS 1.6%9.8CVE-2022-36557Seiko-sol skybridge mb-a100 firmware unrestricted file upload vulnerabilitySeiko SkyBridge MB-A100/A110 v4.2.0 and below was discovered to contain an arbitrary file upload vulnerability via the restore backup function. This …EPSS 1.1%9.8CVE-2022-36558Seiko-sol skybridge mb-a100 firmware hard-coded credentials vulnerabilitySeiko SkyBridge MB-A100/A110 v4.2.0 and below implements a hard-coded passcode for the root account. Attackers are able to access the passcord via th…EPSS 0.79%7.5CVE-2023-25072Seiko-sol skybridge mb-a110 firmware weak password requirements vulnerabilityUse of weak credentials exists in SkyBridge MB-A100/110 firmware Ver. 4.2.0 and earlier, which may allow a remote unauthenticated attacker to decrypt…EPSS 0.83%6.5CVE-2023-24586Seiko-sol skybridge mb-a110 firmware cleartext storage of sensitive data vulnerabilityCleartext storage of sensitive information exists in SkyBridge MB-A100/110 firmware Ver. 4.2.0 and earlier, which may allow a remote authenticated at…EPSS 0.55%6.5CVE-2023-25070Seiko-sol skybridge mb-a110 firmware cleartext transmission vulnerabilityCleartext transmission of sensitive information exists in SkyBridge MB-A100/110 firmware Ver. 4.2.0 and earlier. If the telnet connection is enabled,…EPSS 0.51%6.5CVE-2023-22361Seiko-sol skybridge mb-a110 firmware vulnerabilityImproper privilege management vulnerability in SkyBridge MB-A100/110 firmware Ver. 4.2.0 and earlier allows a remote authenticated attacker to alter …EPSS 36%8.8CVE-2026-67277MikroTik RouterOS btest missing authentication leaks kernel memory and crashes kernelRouterOS accepts a "related" btest connection before the primary session is authenticated, letting an unauthenticated client start an IPv4 UDP test. …KEVEPSS 1.6%analysed

Source: NIST National Vulnerability Database (record CVE-2023-23906), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.