CVE-2023-23901

Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver. 01...

6.5 Medium

Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver. 01.00.05 and earlier, and SkyBridge BASIC MB-A130 firmware Ver. 1.4.1 and earlier, which may allow a remote unauthenticated attacker to eavesdrop on or alter the communication sent to the WebUI of the product.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.46%Up 0.4 points since May 10, 2023

What each source reports

NVD Score used 6.5

Record: CVE-2023-23901
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 3.1: 4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-295
Updated: 2026-11-02

CVE List 4.8

Record: CVE-2023-23901
CVSS 3.1: 4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-295
Updated: 2026-11-02

EUVDEUVD-2023-27984 4.8

Record: EUVD-2023-27984
CVSS 3.1: 4.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-m4jm-xmcc-hjcm 6.5

Improper following of a certificate's chain of trust exists in SkyBridge MB-A200 firmware Ver. 01...

Record: GHSA-m4jm-xmcc-hjcm
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-295
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-23901 is a medium vulnerability (CVSS 6.5) in Seiko-sol Skybridge Basic Mb-a130 Firmware, published May 10, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 39th percentile. No source names a fixed version.