CVE-2026-12223

MEDIUM 5.5

Yealink SIP-T46U Web FastCGI Service tftpuploadiperf mod_webd.TFTPUploadIperf command injection

CVSS Score

5.5

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was identified in Yealink SIP-T46U 108.86.0.118. Affected by this vulnerability is the function mod_webd.TFTPUploadIperf of the file /api/inner/tftpuploadiperf of the component Web FastCGI Service. The manipulation of the argument ip/port leads to command injection. The attack needs to be initiated within the local network. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

CWE	CWE-77 CWE-74
Vendor	yealink
Product	sip-t46u
Published	Jun 15, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Yealink / SIP-T46U

108.86.0.118

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/370866 vuldb.com: https://vuldb.com/vuln/370866/cti vuldb.com: https://vuldb.com/cve/CVE-2026-12223 vuldb.com: https://vuldb.com/submit/834603 cdn2.v50to.cc: http://cdn2.v50to.cc/T46U/T46U_mod_webd_TFTPUploadIperf_system_exec.zip

Credits

🔍 ChiChen241 (VulDB User) VulDB CNA Team