What is CVE-2026-12219?

CVE-2026-12219 is a medium-severity vulnerability in Yealink Sip-t46u, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-06-15.

How severe is CVE-2026-12219?

Medium severity. CVSS v3 base score is 6.3 out of 10.

RCE in Yealink Sip-t46u

CVE-2026-12219

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 caus…

EPSS: 0.011 (60.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Yealink Sip-t46u — versions 108.86.0.118, 108.87.0.23

Weakness classification (CWE)

References

cna@vuldb.com (exploit, broken-link)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)

Frequently asked questions

What is CVE-2026-12219?: CVE-2026-12219 is a medium-severity vulnerability in Yealink Sip-t46u, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-06-15.
How severe is CVE-2026-12219?: Medium severity. CVSS v3 base score is 6.3 out of 10.