CVE-2025-47737 trailer mishandles allocating with a size of zero
A mishandled zero-size allocation in the Rust trailer crate can cause a null dereference, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-47737?
CVE-2025-47737 is a low-severity vulnerability in Geal trailer, published on 9 May 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
lib.rs in the trailer crate through 0.1.2 for Rust mishandles allocating with a size of zero.
Weakness: CWE-762
Which versions are affected by CVE-2025-47737?
3 open source packages ship an affected version, including trailer. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
trailer crates.io | All versions to 0.1.2 | None |
trailer crates.io | All versions to 0.1.2 | None |
trailer crates.io | From 0.0.0-0 | None |
Products include Unhandledexpression Trailer.
How do I fix CVE-2025-47737?
No fix has been published for CVE-2025-47737 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-47737 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-47737 exists.
Sources
Also known as GHSA-6x45-r4pr-5362, RUSTSEC-2025-0163.