TI-2022-16871 Aliases CVE-2022-36558 GHSA-f3g2-f685-r373

Seiko SkyBridge MB-A100/A110 v4.2.0 and below implements a hard-coded passcode for the…

MEDIUM 44CWE-798Published 2022-08-29 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-798.

Summary

Seiko 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 the file /etc/ciel.cfg.

Why it matters now

EPSS 0.00808 57th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:o:seiko-sol:skybridge_mb-a100_firmware::::::::	up to 4.2.0	Vulnerable	Seiko Solutions Inc.
cpe:2.3:h:seiko-sol:skybridge_mb-a100:-:::::::*	not specified by NVD	Running on	Seiko Solutions Inc.
cpe:2.3:o:seiko-sol:skybridge_mb-a110_firmware::::::::	up to 4.2.0	Vulnerable	Seiko Solutions Inc.
cpe:2.3:h:seiko-sol:skybridge_mb-a110:-:::::::*	not specified by NVD	Running on	Seiko Solutions Inc.

cpe:2.3:o:seiko-sol:skybridge_mb-a100_firmware:*:*:*:*:*:*:*:* Versions up to 4.2.0 Vulnerable ·Seiko Solutions Inc.
cpe:2.3:h:seiko-sol:skybridge_mb-a100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Seiko Solutions Inc.
cpe:2.3:o:seiko-sol:skybridge_mb-a110_firmware:*:*:*:*:*:*:*:* Versions up to 4.2.0 Vulnerable ·Seiko Solutions Inc.
cpe:2.3:h:seiko-sol:skybridge_mb-a110:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Seiko Solutions Inc.

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-36558
2026-10-03 Alias added: GHSA-f3g2-f685-r373

References

Advisory 1

https://www.seiko-sol.co.jp/products/skybridge/lineup/mb-a100/

Other 1

https://gist.github.com/Nwqda/88232102fed50b54c43871e88e993b54

TI-2023-08623 Improper privilege management vulnerability in SkyBridge MB-A100/110 firmware Ver. CVSS 3.1MEDIUM 6.5
TI-2022-16869 Seiko SkyBridge MB-A100/A110 v4.2.0 and below was discovered to contain a command… CVSS 3.1CRITICAL 9.8
TI-2022-16870 Seiko SkyBridge MB-A100/A110 v4.2.0 and below was discovered to contain an arbitrary file… CVSS 3.1CRITICAL 9.8
TI-2023-09704 Missing authentication in Seiko Solutions Inc. SkyBridge MB-A100/110 CVSS 3.1HIGH 7.5
TI-2023-10544 Use of weak credentials exists in SkyBridge MB-A100/110 firmware Ver. CVSS 3.1HIGH 7.5
TI-2023-10204 Cleartext storage of sensitive information in Seiko Solutions Inc. SkyBridge MB-A100/110 CVSS 3.1MEDIUM 6.5

See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences