CVE-2025-15572 wasm3 NewCodePage memory leak
A local attacker can trigger a memory leak in the wasm3 library, potentially causing a denial of service due to resource exhaustion.
- 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-2025-15572?
CVE-2025-15572 is a medium-severity denial of service vulnerability in wasm3, published on 10 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability has been found in wasm3 up to 0.5.0. The affected element is the function NewCodePage. The manipulation leads to memory leak. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. Unfortunately, the project has no active maintainer at the moment.
Which versions are affected by CVE-2025-15572?
It affects 1 product.
Products include Wasm3 Project Wasm3.
How do I fix CVE-2025-15572?
No fix has been published for CVE-2025-15572 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-15572 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15572 exists.
Other vulnerabilities in wasm3
- CVE-2024-34249 pywasm3 contains a heap buffer overflow which leads to segmentation fault
- CVE-2024-27528 pywasm3 has an Invalid Memory Read, Leading to DoS and Potential Code Execution
- CVE-2024-27529 wasm3 uncontrolled memory allocation vulnerability
- CVE-2024-27530 pywasm3 contains a Use-After-Free in ForEachModule
- CVE-2022-28990 Buffer overflow in wasm3
Sources
Also known as GHSA-77xv-jxjw-v7mw.