CVE-2025-53391 · cross-distro fix matrix

CVE-2025-53391: Aaron Rainbolt discovered that zuluCrypt used insecure PolicyKit

Affects 4 Linux releases across 50 (distro × package) combinations. First disclosed: 2026-04-30.

Fix per ecosystem

Each block below is a distro release where CVE-2025-53391 has a known fix. Run the listed command on that distro to remediate.

Ubuntu bionic

Source: Ubuntu USN

zulucrypt→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y zulucrypt
```
libzulucrypt-dev→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-dev
```
libzulucrypt-exe-dev→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-exe-dev
```
libzulucrypt-exe1.2.0→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-exe1.2.0
```
libzulucrypt-plugins→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-plugins
```
libzulucrypt1.2.0→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt1.2.0
```
libzulucryptpluginmanager-dev→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucryptpluginmanager-dev
```
libzulucryptpluginmanager1.0.0→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucryptpluginmanager1.0.0
```
zulucrypt-cli→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y zulucrypt-cli
```
zulucrypt-gui→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y zulucrypt-gui
```
zulumount-cli→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y zulumount-cli
```
zulumount-gui→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y zulumount-gui
```
zulupolkit→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y zulupolkit
```
zulusafe-cli→ fixed in5.4.0-2ubuntu0.1~esm2USN-8218-1
```
sudo apt-get install --only-upgrade -y zulusafe-cli
```

Ubuntu focal

Source: Ubuntu USN

zulucrypt→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulucrypt
```
libzulucrypt-dev→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-dev
```
libzulucrypt-exe-dev→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-exe-dev
```
libzulucrypt-exe1.2.0→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-exe1.2.0
```
libzulucrypt-plugins→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-plugins
```
libzulucrypt1.2.0→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt1.2.0
```
libzulucryptpluginmanager-dev→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucryptpluginmanager-dev
```
libzulucryptpluginmanager1.0.0→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucryptpluginmanager1.0.0
```
zulucrypt-cli→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulucrypt-cli
```
zulucrypt-gui→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulucrypt-gui
```
zulumount-cli→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulumount-cli
```
zulumount-gui→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulumount-gui
```
zulupolkit→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulupolkit
```
zulusafe-cli→ fixed in5.7.0-1ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulusafe-cli
```

Ubuntu jammy

Source: Ubuntu USN

zulucrypt→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulucrypt
```
libzulucrypt-dev→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-dev
```
libzulucrypt-exe-dev→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-exe-dev
```
libzulucrypt-exe1.2.0→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-exe1.2.0
```
libzulucrypt-plugins→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-plugins
```
libzulucrypt1.2.0→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt1.2.0
```
libzulucryptpluginmanager-dev→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucryptpluginmanager-dev
```
libzulucryptpluginmanager1.0.0→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucryptpluginmanager1.0.0
```
zulucrypt-cli→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulucrypt-cli
```
zulucrypt-gui→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulucrypt-gui
```
zulumount-cli→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulumount-cli
```
zulumount-gui→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulumount-gui
```
zulupolkit→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulupolkit
```
zulusafe-cli→ fixed in5.7.1-2ubuntu0.1~esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulusafe-cli
```

Ubuntu noble

Source: Ubuntu USN

zulucrypt→ fixed in6.2.0-1ubuntu3+esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y zulucrypt
```
libzulucrypt-dev→ fixed in6.2.0-1ubuntu3+esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-dev
```
libzulucrypt-exe-dev→ fixed in6.2.0-1ubuntu3+esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-exe-dev
```
libzulucrypt-exe1.2.0→ fixed in6.2.0-1ubuntu3+esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-exe1.2.0
```
libzulucrypt-plugins→ fixed in6.2.0-1ubuntu3+esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt-plugins
```
libzulucrypt1.2.0→ fixed in6.2.0-1ubuntu3+esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucrypt1.2.0
```
libzulucryptpluginmanager-dev→ fixed in6.2.0-1ubuntu3+esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucryptpluginmanager-dev
```
libzulucryptpluginmanager1.0.0→ fixed in6.2.0-1ubuntu3+esm1USN-8218-1
```
sudo apt-get install --only-upgrade -y libzulucryptpluginmanager1.0.0
```

Are YOU affected by CVE-2025-53391?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

CVE-2025-53391dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

See StackPatch ($99 lifetime)