CVE-2026-49414 — HIGH (7.8)

Vulnerability 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.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Freebsd	Freebsd	14.3

Related Weaknesses (CWE)

CWE-179

References

https://security.freebsd.org/advisories/FreeBSD-SA-26:32.elf.ascVendor Advisory

FAQ

What is CVE-2026-49414?

CVE-2026-49414 is a vulnerability with a CVSS score of 7.8 (HIGH). 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...

How severe is CVE-2026-49414?

CVE-2026-49414 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-49414?

Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.