Ubuntu USN · USN-8496-1

cifs-utils vulnerability

Published: Thu, 02 Jul 2026 15:11

CVE-2026-12505

Summary

cifs-utils could be made to run programs as an administrator.

Details

It was discovered that cifs-utils incorrectly dropped root privileges before looking up user information. A local attacker could possibly use this issue to execute arbitrary code as the root user.

Recommended actions per Ubuntu release

StackPatch playbook auto-generated per release codename and per affected package.

Ubuntu jammy

cifs-utils→2:6.14-1ubuntu0.4apt_upgrade
Standard apt upgrade. Install 2:6.14-1ubuntu0.4 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y cifs-utils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
cifs-utils→2:6.14-1ubuntu0.4apt_upgrade
Standard apt upgrade. Install 2:6.14-1ubuntu0.4 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y cifs-utils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu noble

cifs-utils→2:7.0-2ubuntu0.3apt_upgrade
Standard apt upgrade. Install 2:7.0-2ubuntu0.3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y cifs-utils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
cifs-utils→2:7.0-2ubuntu0.3apt_upgrade
Standard apt upgrade. Install 2:7.0-2ubuntu0.3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y cifs-utils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu questing

cifs-utils→2:7.4-1ubuntu0.25.10.1apt_upgrade
Standard apt upgrade. Install 2:7.4-1ubuntu0.25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y cifs-utils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
cifs-utils→2:7.4-1ubuntu0.25.10.1apt_upgrade
Standard apt upgrade. Install 2:7.4-1ubuntu0.25.10.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y cifs-utils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu resolute

cifs-utils→2:7.4-1ubuntu0.26.04.1apt_upgrade
Standard apt upgrade. Install 2:7.4-1ubuntu0.26.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y cifs-utils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
cifs-utils→2:7.4-1ubuntu0.26.04.1apt_upgrade
Standard apt upgrade. Install 2:7.4-1ubuntu0.26.04.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y cifs-utils
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Are YOU affected by USN-8496-1?

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