CVE-2026-7208 Yealink SIP-T33G < 124.87.0.0 Race Condition via Diagnostic File Deletion
Authenticated attackers can cause denial of service by racing diagnostic file deletions against active diagnostic processes on Yealink SIP-T33G phones.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-7208?
CVE-2026-7208 is a medium-severity vulnerability in Yealink SIP-T33G, published on 14 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-362
Which versions are affected by CVE-2026-7208?
How do I fix CVE-2026-7208?
No fix has been published for CVE-2026-7208 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-7208 being exploited?
There is no known exploitation of CVE-2026-7208 in the wild and no public exploit code.
Sources
Also known as GHSA-879f-v6cp-q665.