CVE-2026-7208
Yealink SIP-T33G < 124.87.0.0 Race Condition via Diagnostic File Deletion
- State
- Published
- Severity
- 6.0 Medium
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Reserved
- Apr 27, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.0 Medium | CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Products
| Product | Versions |
|---|---|
SIP-T33GYealink |
|
References
- Vendor Advisoryvendor-advisorypatch
- Product Webpageproduct
- https://www.vulncheck.com/advisories/yealink-sip-t33g-race-condition-via-diagnostic-file-deletionthird-party-advisory
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