CVE-2025-32909 · cross-distro fix matrix

CVE-2025-32909: A flaw was found in libsoup. SoupContentSniffer may be vulnerable to a NULL pointer dereference in the sniff_mp4 function. The HTTP server may cause the libsoup client to crash.

Affects 3 Linux releases across 4 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2025-32909 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

libsoup2.4→ fixed in2.72.0-2+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libsoup2.4
```

Debian bookworm

Source: Debian Security Tracker

libsoup3→ fixed in3.2.3-0+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libsoup3
```

Debian trixie

Source: Debian Security Tracker

libsoup2.4→ fixed in2.74.3-10.1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libsoup2.4
```
libsoup3→ fixed in3.6.4-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libsoup3
```

Are YOU affected by CVE-2025-32909?

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-2025-32909dropped 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)