How severe is CVE-2023-23906?

CVE-2023-23906 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-23906 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23906?

CVE-2023-23906 primarily affects Seiko-sol Skybridge Mb-a110 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-23906?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-23906 published?

CVE-2023-23906 was published on 2023-05-10 and last updated on 2026-06-17.

CVE-2023-23906

CVE-2023-23906 is a high-severity vulnerability in Seiko-sol Skybridge Mb-a110 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Seiko-sol Skybridge Mb-a110 Firmware
Published: 2023-05-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-23906?: 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.
How severe is CVE-2023-23906?: CVE-2023-23906 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-23906 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23906?: CVE-2023-23906 primarily affects Seiko-sol Skybridge Mb-a110 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-23906?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-23906 published?: CVE-2023-23906 was published on 2023-05-10 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:seiko-sol:skybridge_mb-a110_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:seiko-sol:skybridge_mb-a100_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Seiko-sol Skybridge Mb-a110 Firmware

CVE-2022-36558 — Critical (CVSS 9.8): Seiko SkyBridge MB-A100/A110 v4.2.0 and below implements a hard-coded passcode for the root account. Attackers are able…
CVE-2022-36557 — Critical (CVSS 9.8): Seiko SkyBridge MB-A100/A110 v4.2.0 and below was discovered to contain an arbitrary file upload vulnerability via the…
CVE-2022-36556 — Critical (CVSS 9.8): Seiko SkyBridge MB-A100/A110 v4.2.0 and below was discovered to contain a command injection vulnerability via the…
CVE-2023-25072 — High (CVSS 7.5): Use of weak credentials exists in SkyBridge MB-A100/110 firmware Ver. 4.2.0 and earlier, which may allow a remote…
CVE-2023-25070 — Medium (CVSS 6.5): Cleartext transmission of sensitive information exists in SkyBridge MB-A100/110 firmware Ver. 4.2.0 and earlier. If the…
CVE-2023-24586 — Medium (CVSS 6.5): Cleartext storage of sensitive information exists in SkyBridge MB-A100/110 firmware Ver. 4.2.0 and earlier, which may…

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