CVE-2025-10101
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk6th percentile - higher than 6% of all known CVEs
Summary
A heap buffer out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed Mach-O file may allow Local Execution of Code or Denial-of-Service of the antivirus process.
Risk Assessment
This vulnerability could lead to serious security threats, including the potential execution of malicious code or disruption of antivirus functionality, exposing systems to attacks.
Recommendation
It is recommended to update the software to version VPS 25090300 or later to mitigate the risks associated with this vulnerability.
Other vulnerabilities in Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, Avast Business Antivirus
See all- CVE-2025-7019Medium
A stack overflow vulnerability in Avast Antivirus when scanning a malformed Office Open XML file may allow Denial-of-Service of the antivirus process.
- CVE-2025-7011High
A heap out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed zip file containing XML may allow Local Execution of Code or Denial-of-Service of the antivirus process.
- CVE-2025-7010Medium
A stack overflow vulnerability due to uncontrolled recursion in Avast Antivirus when scanning a malformed PDF file may allow Denial-of-Service of the antivirus process.
- CVE-2025-7009High
CVE-2025-7009 describes a heap buffer out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed Windows PE file, which may allow Local Execution of Code or Denial-of-Service of the antivirus process.
- CVE-2025-7008High
CVE-2025-7008 describes a heap buffer out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed Windows PE file with .NET metadata, which may allow Local Execution of Code or Denial-of-Service of the antivirus process.
- CVE-2025-7006Medium
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.
- CVE-2025-7005Medium
There is an uncontrolled recursion vulnerability in Avast Antivirus when scanning a malformed Windows PE file, which may lead to a Denial-of-Service of the antivirus process.
- CVE-2025-7004High
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.
Original NVD description (English source)
Heap buffer out-of-bounds read vulnerability in Avast Antivirus when scanning a malformed Mach-O 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 25090300. 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.