HOMEVULNERABILITIESCVE-2022-36558
CRITICAL

CVE-2022-36558

CWE-798Published: August 29, 2022· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

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.

NVD Source

Risk Analysis

Seiko SkyBridge MB-A100/A110 firmware versions 4.2.0 and below contain a hard-coded root password stored in a configuration file. This allows attackers to gain full administrative access to the device remotely.

No public exploit is known, and the vulnerability is not in the KEV catalog. The flaw is remotely exploitable with low attack complexity.

Recommended Action

Update the firmware to a version beyond 4.2.0 and ensure that default credentials are changed immediately.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-36558 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

seiko-sol4 product(s)
skybridge mb-a100 firmwareskybridge mb-a100skybridge mb-a110 firmwareskybridge mb-a110
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (4)

Quick Facts

CVE IDCVE-2022-36558
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-798
CISA KEVNo
Affected1 vendor(s)
PublishedAug 29, 2022

Related CVEs (CWE-798)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2022-36558 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.