CVE-2026-7208Network attack vector

Diagnostic process interruption via concurrent file deletion

Published Sep 14, 2026 · Updated Sep 14, 2026

Race condition in Yealink SIP-T33G firmware before 124.87.0.0 allows remote authenticated users to interrupt diagnostic processes. The diagnostic file-deletion endpoint removes output at predictable paths while ping or traceroute is still writing, terminating the active process. Access requires an authenticated web session and concurrent diagnostic and deletion requests; the reported consequence is diagnostic interruption and an inconsistent device state.

CVSS severityUnavailable
Unscored
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Race condition in Yealink SIP-T33G firmware before 124.87.0.0 allows remote authenticated users to interrupt diagnostic processes. The diagnostic file-deletion endpoint removes output at predictable paths while ping or traceroute is still writing, terminating the active process. Access requires an authenticated web session and concurrent diagnostic and deletion requests; the reported consequence is diagnostic interruption and an inconsistent device state.

The record

CVE
CVE-2026-7208
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
Yealink
Product
SIP-T33G
Classifications
T1489
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=124.86.0.0 <124.87.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Yealink · SIP-T33Gversion=124.86.0.0 <124.87.0.0

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1489Service Stop

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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