CVE-2025-47153 Memory corruption in trixie
Inconsistent off_t size in 32-bit builds of libuv and Node.js causes out-of-bounds memory access, potentially leading to crashes or code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-47153?
CVE-2025-47153 is a medium-severity memory corruption vulnerability in Debian trixie, published on 1 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Certain build processes for libuv and Node.js for 32-bit systems, such as for the nodejs binary package through nodejs_20.19.0+dfsg-2_i386.deb for Debian GNU/Linux, have an inconsistent off_t size (e.g., building on i386 Debian always uses _FILE_OFFSET_BITS=64 for the libuv dynamic library, but uses the _FILE_OFFSET_BITS global system default of 32 for nodejs), leading to out-of-bounds access. NOTE: this is not a problem in the Node.js software itself. In particular, the Node.js website's download page does not offer prebuilt Node.js for Linux on i386.
Weakness: CWE-1102
Which versions are affected by CVE-2025-47153?
How do I fix CVE-2025-47153?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-47153 being exploited?
There is no known exploitation of CVE-2025-47153 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2025-47153, DLA-4152-1, GHSA-5pxx-cc47-2282, UBUNTU-CVE-2025-47153.