CVE-2020-37063 TFTP Turbo 4.6.1273 - 'TFTP Turbo 4' Unquoted Service Path

High 8.5 Published Updated

Local attackers can execute arbitrary code with elevated privileges by exploiting an unquoted service path in TFTP Turbo.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-37063?

CVE-2020-37063 is a high-severity vulnerability in Weird-Solutions TFTP Turbo, published on 1 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

TFTP Turbo 4.6.1273 contains an unquoted service path vulnerability that allows local attackers to potentially execute arbitrary code with elevated privileges. Attackers can exploit the unquoted path in the service configuration to inject malicious executables that will be launched with LocalSystem permissions.

Weakness: CWE-428

Which versions are affected by CVE-2020-37063?

How do I fix CVE-2020-37063?

No fix has been published for CVE-2020-37063 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-37063 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-37063 exists.

Sources

Also known as GHSA-6hrv-vgx8-q9xm.

Is CVE-2020-37063 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free