CVE-2026-1735Public exploit

Physical command execution via diagnostic ping request

Published Feb 2, 2026 · Updated Feb 2, 2026

Command injection in the Yealink MeetingBar A30 Diagnostic Handler 133.321.0.3 allows physically proximate attackers to execute arbitrary code. The local ping diagnostic accepts attacker-controlled input from a crafted request and incorporates it into an operating-system command without neutralizing command syntax. Physical access is required, but no valid login or user interaction is needed; the public record does not identify the command execution context.

CVSS severity2.4
Low
EPSS probability1.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in the Yealink MeetingBar A30 Diagnostic Handler 133.321.0.3 allows physically proximate attackers to execute arbitrary code. The local ping diagnostic accepts attacker-controlled input from a crafted request and incorporates it into an operating-system command without neutralizing command syntax. Physical access is required, but no valid login or user interaction is needed; the public record does not identify the command execution context.

The record

CVE
CVE-2026-1735
Published
Feb 2, 2026
Updated
Feb 2, 2026
Vendor
Yealink
Product
MeetingBar A30
Classifications
CWE-74, CWE-77, T1059
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=133.321.0.3

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Yealink · MeetingBar A30version=133.321.0.3

Published CVSS scores

2.4VulDBCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
4.3VulDBCVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
4.6VulDBAV:L/AC:L/Au:N/C:P/I:P/A:P
4.3VulDBCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

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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