AUGUST 16, 2026
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Case File

CVE-2026-20345

HIGH · CVSS 7.5 EPSS 0.33% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-07 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

A vulnerability in the GPT file format parser of ClamAV allows unauthenticated remote attackers to exploit improper endian conversion handling, potentially leading to out-of-bounds buffer writes and memory corruption. This could result in a denial-of-service (DoS) condition, causing the ClamAV scanning process to terminate unexpectedly. Organizations using ClamAV should prioritize addressing this vulnerability to maintain system availability and security.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-20345
Severity
HIGH
CVSS
7.5
EPSS
0.33%

Original NVD Description

A vulnerability in the GPT file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other expanded impacts as a result of memory corruption on an affected device. This vulnerability is due to improper handling of an endian conversion operation, which may result in an out-of-bounds buffer write. An attacker could exploit this vulnerability by submitting a crafted GPT file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.