Description
A vulnerability in the HTML parser of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
The vulnerability is due to an issue in the C to Rust foreign function interface. An attacker could exploit this vulnerability by submitting a crafted file containing HTML content to be scanned by ClamAV on an affected device. An exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Cisco | ClamAV | 1.3 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | clamav | 1.4.2-150600.18.6.1 | SUSE-SU-2025:0327-1 |
| SLES 15 SP5 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
| SLES 15 SP4 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
| SLES 15 SP3 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
| SLES 12 SP5 | clamav | 1.4.2-3.36.1 | SUSE-SU-2025:0328-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
| SLES for SAP 15 SP4 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
| SLES for SAP 15 SP3 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
| SLE Micro 5.5 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
| SLE HPC 15 SP5 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
| SLE HPC 15 SP4 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
| SLE HPC 15 SP3 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
| SUSE Manager Server 4.3 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
| SUSE Manager Proxy 4.3 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
| SUSE Enterprise Storage 7.1 | clamav | 1.4.2-150200.8.3.1 | SUSE-SU-2025:0325-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | clamav | 1.3.1-1.1 | openSUSE-SU-2024:14087-1 |
| openSUSE Leap 15.6 | clamav | 1.4.2-150600.18.6.1 | SUSE-SU-2025:0327-1 |
Advisories 5
- SUSE-SU-2025:0325-1 Security update for clamav SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14087-1 clamav-1.3.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0328-1 Security update for clamav SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:0327-1 Security update for clamav SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2024-0921 ClamAV: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Feb 3, 2025