CVE-2025-20128
Description
A vulnerability in the Object Linking and Embedding 2 (OLE2) decryption routine of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an integer underflow in a bounds check that allows for a heap buffer overflow read. An attacker could exploit this vulnerability by submitting a crafted file containing OLE2 content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process, resulting in a DoS condition on the affected software. For a description of this vulnerability, see the . Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
How to fix
- clamav clamav1.0.8, 1.4.2 or later
- cisco secure_endpoint1.24.4, 1.25.1, 7.5.20, 8.4.3 or later
- cisco secure_endpoint_private_cloud4.2.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| clamav clamav | 1.0.0 ≤ v < 1.0.8, 1.1.0 ≤ v < 1.4.2 | 1.0.8, 1.4.2 |
| cisco secure_endpoint | v < 1.24.4, v < 1.25.1, v < 7.5.20, 8.0.1.21160 ≤ v < 8.4.3 | 1.24.4, 1.25.1, 7.5.20, 8.4.3 |
| cisco secure_endpoint_private_cloud | v < 4.2.0 | 4.2.0 |
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