CVE-2025-7003
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
A heap buffer out-of-bounds read vulnerability exists in the Avira Antivirus engine when scanning a malformed PDF file. This may allow Local Execution of Code or Denial-of-Service of the antivirus engine process.
Risk Assessment
This vulnerability may compromise system integrity, allowing attackers to execute malicious code or cause the antivirus software to crash, potentially leading to a lack of protection against threats.
Recommendation
It is recommended to update the Avira Antivirus engine to version 8.3.70.56 or later to mitigate this vulnerability.
Other vulnerabilities in Avira Antivirus engine
See all- CVE-2025-7018Medium
CVE-2025-7018 involves a null pointer dereference vulnerability in the Avira Antivirus engine when scanning a malformed Windows PE file, potentially leading to a Denial-of-Service of the antivirus engine process.
- CVE-2025-7017High
CVE-2025-7017 is a heap buffer out-of-bounds read vulnerability in the Avira Antivirus engine when scanning a malformed Windows MSI file. This may allow Local Execution of Code or Denial-of-Service of the antivirus engine process.
- CVE-2025-7002High
CVE-2025-7002 describes a heap buffer out-of-bounds read vulnerability in the Avira Antivirus engine that may occur when scanning a malformed PDF file. This may allow local code execution or denial-of-service of the antivirus engine process.
- CVE-2025-8351High
A heap-based buffer overflow and out-of-bounds read vulnerability in the Avira Antivirus engine may allow local execution of code or denial-of-service of the antivirus engine process when scanning a malformed file.
Original NVD description (English source)
Heap buffer out-of-bounds read vulnerability in Avira Antivirus engine when scanning a malformed PDF file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.56.