CVE-2026-49414
ASLR bypass for setuid executables via procctl(2)
Description
The ELF image activator cleared per-process ASLR preference flags for setuid binaries after the code that computes the PIE base address, rather than before. As a result, a user-requested ASLR disable was still in effect at the point where the base address was chosen. An unprivileged local user can disable ASLR for a setuid PIE binary by calling procctl(2) before execve(2). This makes exploitation of any separate memory corruption vulnerability in that binary significantly easier.
INFO
Published Date :
June 27, 2026, 9:22 a.m.
Last Modified :
June 27, 2026, 9:22 a.m.
Remotely Exploit :
No
Source :
freebsd
Affected Products
The following products are affected by CVE-2026-49414
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the operating system to patch the ELF image activator.
- Verify ASLR settings for setuid binaries.
- Test the fix to ensure proper ASLR enforcement.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-49414 vulnerability anywhere in the article.