Yealink MeetingBar A30 133.321.0.3 Diagnostic command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.20

Summaryinfo

A vulnerability was found in Yealink MeetingBar A30 133.321.0.3 and classified as critical. Impacted is an unknown function of the component Diagnostic Handler. Such manipulation leads to command injection. This vulnerability is traded as CVE-2026-1735. The attack can be executed directly on the physical device. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Detailsinfo

A vulnerability was found in Yealink MeetingBar A30 133.321.0.3 and classified as problematic. Affected by this issue is an unknown code of the component Diagnostic Handler. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability.

The advisory is available at drive.google.com. This vulnerability is handled as CVE-2026-1735. The exploitation is known to be easy. Local access is required to approach this attack. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

The exploit is available at drive.google.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

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-2026-5110). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: Yes
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/01/2026 Advisory disclosed
02/01/2026 +0 days VulDB entry created
02/03/2026 +2 days VulDB entry last update

Sourcesinfo

Advisory: drive.google.com
Status: Not defined

CVE: CVE-2026-1735 (🔒)
GCVE (CVE): GCVE-0-2026-1735
GCVE (VulDB): GCVE-100-343634
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/01/2026 08:43 AM
Updated: 02/03/2026 11:02 AM
Changes: 02/01/2026 08:43 AM (55), 02/02/2026 03:07 AM (30), 02/03/2026 11:02 AM (1)
Complete: 🔍
Submitter: cccll
Cache ID: 244:62F:40

Submitinfo

Accepted

  • Submit #736622: Yealink MeetingBar A30 133.321.0.3 Command Injection (by cccll)

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