CVE-2025-14098
High
Description
Heap buffer out-of-bounds write vulnerability due to integer overflow in Avira Antivirus engine when scanning a malformed MS-DOS executable 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 8.3.70.104.
SeverityHigh
CVSS7.8
Exploit probability—
ProductAvira Antivirus
PublishedJun 12, 2026
First seenJun 12, 2026
Weakness typeCWE-787Out-of-bounds writeCWE-190Integer overflow
How to fix
Update
- Gen Digital Avira Antivirus8.3.70.104 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Gen Digital Avira Antivirus | v < 8.3.70.104 | 8.3.70.104 |
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