CVE-2025-7006
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk2th percentile — higher than 2% of all known CVEs
Summary
The vulnerability in Avast Antivirus involves the use of stack memory after it has been freed when scanning a malformed Windows PE file, which may lead to a denial-of-service of the antivirus process.
Risk Assessment
If exploited, this vulnerability could cause the antivirus software to become non-functional, increasing the risk of malware infections.
Recommendation
It is recommended to update the antivirus software to version VPS 25022500 or later to mitigate the risks associated with this vulnerability.
Original NVD description (English source)
Use of stack memory after free vulnerability in Avast Antivirus when scanning a malformed Windows PE file may allow 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 25022500. 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.