Medium severity · published Jun 15, 2026
CVE-2026-12219
Yealink SIP-T46U Web FastCGI Service start mod_diagnose.CommandShellByType command injection
6.3
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SI
SIP-T46U · Yealink
108.86.0.118 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-12219
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-12219
cdn2.v50to.cc
http://cdn2.v50to.cc/T46U/T46U_mod_diagnose_CommandShellByType_iperf_time_cmd_injection.zip
vuldb.com
https://vuldb.com/cve/CVE-2026-12219
vuldb.com
https://vuldb.com/submit/834204
vuldb.com
https://vuldb.com/vuln/370862
vuldb.com
https://vuldb.com/vuln/370862/cti
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