CVE-2025-20109 · cross-distro fix matrix

CVE-2025-20109: Improper Isolation or Compartmentalization in the stream cache mechanism for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege via local access.

Affects 7 Linux releases across 7 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2025-20109 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

intel-microcode→ fixed in3.20250812.1~deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y intel-microcode
```

Debian bookworm

Source: Debian Security Tracker

intel-microcode→ fixed in3.20250812.1~deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y intel-microcode
```

Debian trixie

Source: Debian Security Tracker

intel-microcode→ fixed in3.20250812.1~deb13u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y intel-microcode
```

Alpine v3.20

Source: Alpine secdb

intel-ucode→ fixed in20250812-r0

apk update && apk add --upgrade intel-ucode

Alpine v3.21

Source: Alpine secdb

intel-ucode→ fixed in20250812-r0

apk update && apk add --upgrade intel-ucode

Alpine edge

Source: Alpine secdb

intel-ucode→ fixed in20250812-r0

apk update && apk add --upgrade intel-ucode

Alpine v3.19

Source: Alpine secdb

intel-ucode→ fixed in20250812-r0

apk update && apk add --upgrade intel-ucode

Are YOU affected by CVE-2025-20109?

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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