CVE-2026-122120 | BDVDB-2026-400413 Detail

YealinkPlug-in Softwares

Description#

In Yealink Plug-in Softwares before 2.35.219.0, there is an unauthorized file write vulnerability under specific scenarios, which may be exploited by attackers to achieve remote code execution.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

CWE-434 Unrestricted Upload of File with Dangerous Type

References#

Exploit#

No public exploit known

History#

Version 12026-11-04Record published in the CVE List.
Version 22026-11-05Most recent update recorded in the CVE List.

Published

Published: 2026-11-04
Last modified: 2026-11-05

Vendor information

Vendor: Yealink
Product: Plug-in Softwares

All Yealink vulnerabilities

Score

9.0 Critical

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 44.0.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Unrestricted File Upload

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 2.35.219.0
Fixed
2.35.219.0

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.0 Critical

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	High
Privileges Required	None
User Interaction	None
Scope	Changed
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).