VDB-228560 · CVE-2023-25070 · EUVD-2023-29049

Seiko SkyBridge MB-A100/SkyBridge MB-A110 up to 4.2.0 Telnet Connection cleartext transmission

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Seiko SkyBridge MB-A100 and SkyBridge MB-A110 up to 4.2.0. This affects an unknown part of the component Telnet Connection Handler. Such manipulation leads to cleartext transmission. This vulnerability is referenced as CVE-2023-25070. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Seiko SkyBridge MB-A100 and SkyBridge MB-A110 up to 4.2.0 and classified as problematic. Affected by this issue is an unknown part of the component Telnet Connection Handler. The manipulation with an unknown input leads to a cleartext transmission vulnerability. Using CWE to declare the problem leads to CWE-319. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. Impacted is confidentiality. CVE summarizes:

Cleartext transmission of sensitive information exists in SkyBridge MB-A100/110 firmware Ver. 4.2.0 and earlier. If the telnet connection is enabled, a remote unauthenticated attacker may eavesdrop on or alter the administrator's communication to the product.

The weakness was published 05/10/2023. The advisory is shared for download at jvn.jp. This vulnerability is handled as CVE-2023-25070 since 03/15/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1040.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-29049). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Seiko

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.1

VulDB Base Score: 3.7
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cleartext transmission
CWE: CWE-319 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/15/2023 🔍
05/10/2023 +55 days 🔍
05/10/2023 +0 days 🔍
10/28/2025 +902 days 🔍

Sourcesinfo

Advisory: jvn.jp
Status: Not defined

CVE: CVE-2023-25070 (🔍)
GCVE (CVE): GCVE-0-2023-25070
GCVE (VulDB): GCVE-100-228560
EUVD: 🔍

Entryinfo

Created: 05/10/2023 08:58
Updated: 10/28/2025 04:54
Changes: 05/10/2023 08:58 (38), 06/02/2023 08:52 (11), 10/28/2025 04:54 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.