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CVE-2025-3500
Published: Dec 1, 2025
Modified: Feb 26, 2026
PUBLISHED
CVSS v3.1
9.0
CRITICAL
Description
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.
| Vendor | Product | Versions |
|---|---|---|
Avast | Antivirus | affected 25.1.981.6 - < 25.3 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
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
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