CVE-2025-7004
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk4th percentile - higher than 4% of all known CVEs
Summary
Avast Antivirus has a heap buffer out-of-bounds write vulnerability when scanning a malformed Windows PE file, which may allow Local Execution of Code or Denial-of-Service of the antivirus process.
Risk Assessment
This vulnerability may lead to serious security threats, including the execution of malicious code or disruption of antivirus software operation, potentially exposing systems to attacks.
Recommendation
It is recommended to update the antivirus software to version VPS 25040308 or later to mitigate the risks associated with this vulnerability.
Original NVD description (English source)
Heap buffer out-of-bounds write vulnerability in Avast Antivirus when scanning a malformed Windows PE file may allow Local Execution of Code or Denial-of-Service of the antivirus process. This issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, and Avast Business Antivirus on Windows, macOS, and Linux for virus definition builds before VPS 25040308. The affected scanning logic is delivered through a shared Gen Digital virus definition update stream. The same stream feeds the consumer antivirus products listed in this advisory and other Gen Digital products that embed the same engine. Mitigation flows through this update channel; installations at or above the listed build are not vulnerable regardless of which product consumes the stream.