CVE-2023-24586Network attack vector

APN credential disclosure via cleartext storage

Published May 10, 2023 · Updated Jan 28, 2025

Cleartext storage in Seiko Solutions SkyBridge MB-A100/A110 4.2.0 and earlier allows remote authenticated users to obtain its APN credential. The firmware stores the APN credential without cryptographic protection, but public advisories do not identify the specific storage locus or retrieval request. Access requires authentication to the network-reachable management interface, and exploitation discloses the configured APN credential without altering settings or interrupting service.

CVSS severity3.1
Low
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext storage in Seiko Solutions SkyBridge MB-A100/A110 4.2.0 and earlier allows remote authenticated users to obtain its APN credential. The firmware stores the APN credential without cryptographic protection, but public advisories do not identify the specific storage locus or retrieval request. Access requires authentication to the network-reachable management interface, and exploitation discloses the configured APN credential without altering settings or interrupting service.

The record

CVE
CVE-2023-24586
Published
May 10, 2023
Updated
Jan 28, 2025
Vendor
Seiko Solutions Inc.
Product
SkyBridge MB-A100/A110
Classifications
CWE-312, T1552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=firmware Ver. 4.2.0 and earlier

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Seiko Solutions Inc. · SkyBridge MB-A100/A110version=firmware Ver. 4.2.0 and earlier

Published CVSS scores

3.1JPCERT/CC and IPACVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
3.5JPCERT/CC and IPAAV:N/AC:M/Au:S/C:P/I:N/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
3.1CISA-ADPCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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