Yealink SIP-T46U 108.86.0.118 Web FastCGI Service /api/diagnosis/start mod_diagnose.CommandShellByType Time command injection

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Yealink SIP-T46U 108.86.0.118. This affects the function mod_diagnose.CommandShellByType of the file /api/diagnosis/start of the component Web FastCGI Service. Such manipulation of the argument Time leads to command injection. This vulnerability is uniquely identified as CVE-2026-12219. The attack can be launched remotely. Moreover, an exploit is present. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Yealink SIP-T46U 108.86.0.118. It has been rated as critical. Affected by this issue is the function mod_diagnose.CommandShellByType of the file /api/diagnosis/start of the component Web FastCGI Service. The manipulation of the argument time 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 cdn2.v50to.cc. This vulnerability is handled as CVE-2026-12219. The exploitation is known to be easy. The attack may be launched remotely. Technical details as well as a public exploit are known. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

The exploit is available at cdn2.v50to.cc. It is declared as proof-of-concept.

Upgrading to version 108.87.0.23 eliminates this vulnerability.

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Productinfo

Type

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: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.3
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: No
Local: No
Remote: Yes

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: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: SIP-T46U 108.87.0.23

Timelineinfo

06/14/2026 Advisory disclosed
06/14/2026 +0 days VulDB entry created
06/27/2026 +13 days VulDB entry last update

Sourcesinfo

Advisory: cdn2.v50to.cc
Status: Confirmed

CVE: CVE-2026-12219 (🔒)
GCVE (CVE): GCVE-0-2026-12219
GCVE (VulDB): GCVE-100-370862
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/14/2026 15:59
Updated: 06/27/2026 10:58
Changes: 06/14/2026 15:59 (59), 06/27/2026 07:46 (8), 06/27/2026 10:58 (31)
Complete: 🔍
Submitter: CookedMelon
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #834204: yealink T46U 108.86.0.118 Command Injection (by CookedMelon)

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