CVE-2025-20128

The vulnerability CVE-2025-20128 affects ClamAV’s OLE2 file decryption. An integer underflow in a bounds check allows a heap buffer overflow read via a crafted OLE2 content file, enabling an unauthenticated remote attacker to cause a DoS by terminating the ClamAV scanning process. Cisco’s advisor...

CVE-2024-20290

CVE-2024-20290 : A DoS in ClamAV due to a heap-based overflow in the OLE2 file format parser caused by an incorrect end-of-string check during scanning. Attacker-submitted crafted OLE2 content could crash the ClamAV scanning process. Connected documents confirm this vulnerability and reference mu...

CVE-2022-20770

CVE-2022-20770 describes a denial-of-service in ClamAV caused by a CHM file parser vulnerability. Affected software: ClamAV scanning library versions 0.104.0–0.104.2 and LTS 0.103.5 and earlier. An unauthenticated, remote attacker could craft a CHM file to crash the ClamAV process, leading to DoS...

CVE-2023-20197

CVE-2023-20197 describes a DoS in ClamAV caused by the HFS+ filesystem image parser. The root cause is an incorrect completion-check during file decompression, which can trigger an infinite loop and make the ClamAV scanning process stop responding, consuming resources. Exploitation requires sendi...

CVE-2023-20052

CVE-2023-20052 affects ClamAV DMG file parser in versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier. An unauthenticated attacker could exploit XML external entity substitution to cause an information leak by submitting a crafted DMG file to be scanned, potentially leaking by...

CVE-2022-20785

CVE-2022-20785 affects ClamAV HTML file parser. Vulnerable versions: 0.1040–0.1042 and LTS 0.103.5 and earlier. Condition: unauthenticated remote attacker can cause a denial-of-service on the affected device. Description points to the ClamAV blog for details; no exploit specifics are provided in ...

CVE-2023-20032

CVE-2023-20032 affects ClamAV HFS+ parser: vulnerable in versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier due to a missing buffer size check that can cause a heap buffer overflow. An unauthenticated, remote attacker could trigger arbitrary code execution with the ClamAV sc...

CVE-2022-20771

The CVE-2022-20771 issue affects the ClamAV TIFF file parser. It is a denial-of-service vulnerability that could be exploited by an unauthenticated, remote attacker by processing a crafted TIFF file. Affected versions include ClamAV 0.104.0–0.104.2 and the LTS line 0.103.5 and earlier. Public adv...

CVE-2022-20796

CVE-2022-20796 affects ClamAV scanning library versions 0.103.4/0.103.5/0.104.1/0.104.2, where an authenticated, local attacker could cause a denial-of-service on affected devices. Connected advisories confirm the issue across multiple distributions and indicate remediation by upgrading to later ...

CVE-2023-20212

CVE-2023-20212 affects ClamAV via the AutoIt module. The vulnerability stems from a logic error in memory management, exploitable by submitting a crafted AutoIt file to be scanned, potentially restarting the ClamAV scanning process and causing a DoS. Impact is described as high (availability loss...

CVE-2025-20234

CVE-2025-20234 is a memory overread vulnerability in ClamAV’s UDF file processing that can be exploited by an unauthenticated attacker to cause a DoS via crafted UDF content. Affected: ClamAV UDF scanning; root cause: memory overread during UDF file scanning. Impact: DoS on the ClamAV process; no...

CVE-2023-20084

CVE-2023-20084 affects Cisco Secure Endpoint for Windows. A timing issue between software components can let a local, authenticated attacker coerce a user to place a malicious file in a folder and run it within a narrow window, causing the endpoint to fail to quarantine the file or terminate the ...