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No exploitation reportedAwaiting NVD analysis

CVE-2026-122120

No exploitation reported by the sources we read.

  • Published2026-11-04
  • WeaknessCWE-434

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2026-11-0418:00CVE publishedCNA

Versions per branch

Products declared by the CNA

As mitre, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • Yealink Plug-in Softwaresother versions: not affected

    platforms: Windows

    Affected
    • < 2.35.219.0fixed in 2.35.219.0custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-04

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-122120 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.192026-11-04
  • CNAweakness (CWE)CWE-4342026-11-04
  • NVDweakness (CWE)CWE-434read 2026-11-04

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
2026-11-04
Last Modified
2026-11-04
NVD status
Received

Frequently asked questions

What is CVE-2026-122120?

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.

Is CVE-2026-122120 actively exploited?

Active exploitation of CVE-2026-122120 has not been confirmed.

What is the CVSS score for CVE-2026-122120?

CVE-2026-122120 has a CVSS v3 base score of 9 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

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