CVE-2025-4563 · cross-distro fix matrix

CVE-2025-4563: A vulnerability exists in the NodeRestriction admission controller where nodes can bypass dynamic resource allocation authorization checks. When the DynamicResourceAllocation feature gate is enabled, the controller properly validates resource claim statuses during pod status updates but fails to per

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2025-4563 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

kubernetes→ fixed in1.20.5+really1.20.2-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y kubernetes
```

Debian bookworm

Source: Debian Security Tracker

kubernetes→ fixed in1.20.5+really1.20.2-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y kubernetes
```

Debian trixie

Source: Debian Security Tracker

kubernetes→ fixed in1.20.5+really1.20.2-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y kubernetes
```

Are YOU affected by CVE-2025-4563?

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

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