CVE-2004-0523 · cross-distro fix matrix

CVE-2004-0523: Multiple buffer overflows in krb5_aname_to_localname for MIT Kerberos 5 (krb5) 1.3.3 and earlier allow remote attackers to execute arbitrary code as root.

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

Elevated exploitation risk

FIRST EPSS puts CVE-2004-0523's probability of exploitation in the next 30 days at 12% (96th percentile of all CVEs)— well above the noise floor. Prioritize it.

EPSS:12% · 30-day exploit probability96th percentile

Fix per ecosystem

Each block below is a distro release where CVE-2004-0523 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

krb5→ fixed in1.3.3-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y krb5
```

Debian bookworm

Source: Debian Security Tracker

krb5→ fixed in1.3.3-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y krb5
```

Debian trixie

Source: Debian Security Tracker

krb5→ fixed in1.3.3-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y krb5
```

Are YOU affected by CVE-2004-0523?

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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