CVE-2025-0781 Incorrect Authorization in SimGear

High 8.6 Published Updated

Attackers can bypass Nasal script sandboxing to write arbitrary files, requiring user permissions, affecting FlightGear users.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2025-0781?

CVE-2025-0781 is a high-severity missing authorization vulnerability in Debian Debian Linux, published on 28 Jan 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

An attacker can bypass the sandboxing of Nasal scripts and arbitrarily write to any file path that the user has permission to modify at the operating-system level.

Weakness: CWE-863

Which versions are affected by CVE-2025-0781?

It affects 2 products.

Products include Debian Debian Linux, Flightgear Simgear.

How do I fix CVE-2025-0781?

Apply the vendor's patch.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-0781 being exploited?

There is no known exploitation of CVE-2025-0781 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2025-0781, DLA-4034-1, DLA-4035-1, GHSA-555q-7wq3-w6ch, UBUNTU-CVE-2025-0781.

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