CVE-2025-3500
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-12-01
Last updated on: 2026-02-06
Assigner: NortonLifeLock Inc.
Description
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.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| avast | antivirus | From 25.1.981.6 (inc) to 25.3 (inc) |
| avast | antivirus | 25.1.981.6 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-190 | The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an Integer Overflow or Wraparound issue in Avast Antivirus versions from 25.1.981.6 before 25.3 on Windows. It allows a user to escalate their privileges, potentially gaining higher access rights than intended.
How can this vulnerability impact me? :
The vulnerability can lead to privilege escalation, meaning an attacker or malicious user could gain elevated permissions on the affected system. This could allow them to execute unauthorized actions, compromise system integrity, and access sensitive data.
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