Vulnerability · Published Nov 4, 2026 · Assigned by mitre
CVE-2026-122120
Critical 9.0
In plain English
A critical-severity unrestricted file upload in Plug-in Softwares from Yealink. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).
Severity (CVSS 3.1)9.0Critical
Exploit odds (30 days)0.5%top 56.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Yealink | Plug-in Softwares | 0 – before 2.35.219.0 |
Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H