CVE-2009-1490 · cross-distro fix matrix

CVE-2009-1490: Heap-based buffer overflow in Sendmail before 8.13.2 allows remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via a long X- header, as demonstrated by an X-Testing header.

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

Elevated exploitation risk

FIRST EPSS puts CVE-2009-1490's probability of exploitation in the next 30 days at 13% (96th percentile of all CVEs)— well above the noise floor. Prioritize it.

EPSS:13% · 30-day exploit probability96th percentile

Fix per ecosystem

Each block below is a distro release where CVE-2009-1490 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

sendmail→ fixed in8.13.2-0urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y sendmail
```

Debian bookworm

Source: Debian Security Tracker

sendmail→ fixed in8.13.2-0urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y sendmail
```

Debian trixie

Source: Debian Security Tracker

sendmail→ fixed in8.13.2-0urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y sendmail
```

Are YOU affected by CVE-2009-1490?

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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