Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Yealink | SIP-T33G | 124.86.0.0 – < 124.87.0.0 | 124.87.0.0 |
References
- Vendor Advisory vendor-advisory patch
- Product Webpage product
- https://www.vulncheck.com/advisories/yealink-sip-t33g-race-condition-via-diagnostic-file-deletion third-party-advisory