Description
When exchanging data over a socket, libnv uses select(2) to wait for data to arrive. However, it does not verify whether the provided socket descriptor fits in select(2)'s file descriptor set size limit of FD_SETSIZE (1024). An attacker who is able to force a libnv application to allocate large file descriptors, e.g., by opening many descriptors and executing a program which is not careful to close them upon startup, can trigger stack corruption. If the target application is setuid-root, then this could be used to elevate local privileges.
INFO
Published Date :
2026-04-30T08:01:49.015Z
Last Modified :
2026-05-01T03:55:51.194Z
Source :
freebsd
AFFECTED PRODUCTS
The following products are affected by CVE-2026-39457 vulnerability.
| Vendors | Products |
|---|---|
| Freebsd |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-39457.
