CVE Catalog

CVE-2026-7208

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.35%

26th percentile - higher than 26% of all known CVEs

Summary

Yealink SIP-T33G firmware versions 124.86.x.x prior to 124.87.0.0 contain a race condition vulnerability that allows authenticated attackers to interrupt active diagnostic processes by concurrently deleting output files written to predictable paths under the diagnostic directory. Attackers can trigger a diagnostic operation such as traceroute or ping and simultaneously invoke the file deletion endpoint to terminate the running process, leaving the system in an inconsistent state.

Risk Assessment

An attacker can disrupt diagnostic functions of the device, potentially leading to an inconsistent system state and affecting phone reliability.

Recommendation

Update Yealink SIP-T33G firmware to version 124.87.0.0 or later, which includes the fix.

Related vulnerabilities

Original NVD description (English source)

Yealink SIP-T33G firmware versions 124.86.x.x prior to 124.87.0.0 contain a race condition vulnerability that allows authenticated attackers to interrupt active diagnostic processes by concurrently deleting output files written to predictable paths under the diagnostic directory. Attackers can trigger a diagnostic operation such as traceroute or ping and simultaneously invoke the file deletion endpoint to terminate the running process, leaving the system in an inconsistent state.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS