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Vulnerability · Published Jun 15, 2026 · Assigned by VulDB

CVE-2026-12219Yealink SIP-T46U Web FastCGI Service start mod_diagnose.CommandShellByType command injection

Medium 6.3

In plain English

A medium-severity command injection in SIP-T46U from Yealink. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 64% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)1.1%top 35.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw has been found in Yealink SIP-T46U 108.86.0.118. The impacted element is the function mod_diagnose.CommandShellByType of the file /api/diagnosis/start of the component Web FastCGI Service. This manipulation of the argument Time causes command injection. The attack can be initiated remotely. The exploit has been published and may be used. Upgrading to version 108.87.0.23 is sufficient to resolve this issue. It is advisable to upgrade the affected component.

Affected products (as reported)

VendorProductVersions
Yealink SIP-T46U 108.86.0.118

Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

References