STIGQter: STIG Summary: Red Hat Enterprise Linux 10 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 01 Jul 2026:

RHEL 10 must mount "/dev/shm" with the "noexec" option.

DISA Rule

SV-281236r1166660_rule

Vulnerability Number

V-281236

Group Title

SRG-OS-000368-GPOS-00154

Rule Version

RHEL-10-700140

Severity

CAT II

CCI(s)

• CCI-001764 - Prevent program execution in accordance with organization-defined policies, rules of behavior, and/or access agreements regarding software program usage and restrictions; rules authorizing the terms and conditions of software program usage.

Weight

10

Fix Recommendation

Configure RHEL 10 to mount "/dev/shm" with the "noexec" option.

Modify "/etc/fstab" to use the "noexec" option on the "/dev/shm" file system.

To reload all implicit mount units and update the dependency graph so that new options will apply correctly at next remount, run the following command:

$ sudo systemctl daemon-reload

Use the following command to apply the changes immediately without a reboot:

$ sudo mount -o remount /dev/shm

Check Contents

Verify RHEL 10 is configured so that "/dev/shm" is mounted with the "noexec" option with the following command:

$ mount | grep /dev/shm
tmpfs on /dev/shm type tmpfs (rw,nodev,nosuid,noexec,seclabel)

If the "/dev/shm" file system is mounted without the "noexec" option, this is a finding.

Vulnerability Number

V-281236

Documentable

False

Rule Version

RHEL-10-700140

Severity Override Guidance

Verify RHEL 10 is configured so that "/dev/shm" is mounted with the "noexec" option with the following command:

$ mount | grep /dev/shm
tmpfs on /dev/shm type tmpfs (rw,nodev,nosuid,noexec,seclabel)

If the "/dev/shm" file system is mounted without the "noexec" option, this is a finding.

Check Content Reference

M

Target Key

5733