CVE-2025-3500
Integer Overflow in Avast Antiviurs 25.1.981.6 on Windows may result in privilege escalation
CVSS Score
9.0
EPSS Score
0.0%
EPSS Percentile
0th
Integer Overflow or Wraparound vulnerability in Avast Antivirus (25.1.981.6) on Windows allows Privilege Escalation.This issue affects Antivirus: from 25.1.981.6 before 25.3.
| CWE | CWE-190 |
| Vendor | avast |
| Product | antivirus |
| Published | Dec 1, 2025 |
| Last Updated | Feb 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Avast / Antivirus
25.1.981.6 < 25.3
References
Credits
🔍 Baris Akkaya Trend Micro Zero Day Initiative