CVE-2025-20260 · cross-distro fix matrix

CVE-2025-20260: A vulnerability in the PDF scanning processes of ClamAV could allow an unauthenticated, remote attacker to cause a buffer overflow condition, cause a denial of service (DoS) condition, or execute arbitrary code on an affected device. This vulnerability exists because memory buffers are allocated

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

Fix per ecosystem

Each block below is a distro release where CVE-2025-20260 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

clamav→ fixed in1.0.9+dfsg-1~deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y clamav
```

Debian bookworm

Source: Debian Security Tracker

clamav→ fixed in1.0.9+dfsg-1~deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y clamav
```

Debian trixie

Source: Debian Security Tracker

clamav→ fixed in1.4.3+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y clamav
```

Alpine edge

Source: Alpine secdb

clamav→ fixed in1.4.3-r0
```
apk update && apk add --upgrade clamav
```

Are YOU affected by CVE-2025-20260?

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-2025-20260dropped 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)