CVE-2025-9033
High
Description
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 8.3.70.76.
SeverityHigh
CVSS7.8
Exploit probability2. percentile0.1%
ProductAvira Antivirus
PublishedJun 12, 2026
First seenJun 12, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- Gen Digital Avira Antivirus8.3.70.76 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Gen Digital Avira Antivirus | v < 8.3.70.76 | 8.3.70.76 |
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