CVE intelligence and bounded remediation
CVE-2023-22441 — Seiko-Sol Skybridge Basic Mb-A130 Firmware security vulnerability
Missing authentication for critical function exists in Seiko Solutions SkyBridge series, which may allow a remote attacker to obtain or alter the setting information of the product or execute some critical functions without authentication, e.g., rebooting the product. Affected products and versions are as follows: SkyBridge MB-A200 firmware Ver. 01.00.05 and earlier, and SkyBridge BASIC MB-A130 firmware Ver. 1.4.1 and earlier
- Severity
- High
- CVSS
- 8.6 (3.1)
- Published
- 2023-05-10
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-306
Affected products
- seiko-sol / skybridge_basic_mb-a130_firmware
- seiko-sol / skybridge_mb-a200_firmware
Matched remediation archetype
Authentication bypass and missing authentication
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
- Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
- Review session, token, credential, and proxy trust configuration without attempting account takeover.
Remediate safely
- Apply the supported fix and centralize fail-closed authentication before protected request handling.
- Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
- Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.
Authoritative sources
Complete CVE record and remediation plan
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