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OpenAdvisories

Vendor

Avast

24 known vulnerabilities.

Products

Free Antivirus 5 CleanUp Premium 5 AVAST Antivirus 4 Antivirus 3 Premium Security 3 (Free/Premiium/Ultimeat) Antivirus 1 CleanUp 1 Avast Business Antivirus 1 Anitvirus 1 AVAST SecureLine 1 Antivirus < 22.10 0 Antivirus Script Shield < 18.0.1478 0 Antivirus < 22.11 0
All Critical High Medium Low Exploited only Public exploit

7 results · Clear filters · Feed

  • Medium 4.4
    CVE-2025-10905

    Collision in minifilter driver of Avast Free Antivirus results in disabling of real-time protection

    Collision in MiniFilter driver in Avast Software Avast Free Antivirus  before 25.9  on Windows allows a local attacker with administrative privileges to disable real-time protection and self-defense mechanisms.

    Avast Free Antivirus
  • Medium 6.1
    CVE-2024-7228

    Avast Free Antivirus Link Following Denial-of-Service Vulnerability

    Avast Free Antivirus Link Following Denial-of-Service Vulnerability. This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Avast Free Antivirus. An attacker must first obtain the ability to execute low-…

    Avast Free Antivirus
  • Medium 5.3
    CVE-2023-42124

    Avast Premium Security Sandbox Protection Incorrect Authorization Privilege Escalation Vulnerability

    Avast Premium Security Sandbox Protection Incorrect Authorization Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avast Premium Security. An attacker must first obtain the abili…

    Avast Premium Security
  • Medium 5.8
    CVE-2023-1587

    Avast and AVG Antivirus for Windows were susceptible to a NULL pointer dereference issue via RPC-interface. The issue w…

    Avast AVG AVAST Antivirus AVG Antivirus
  • Medium 6.5
    CVE-2023-1586

    Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the resto…

    Avast AVG AVAST Antivirus AVG Antivirus
  • Medium 6.5
    CVE-2023-1585

    Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the Quara…

    Avast AVG AVAST Antivirus AVG Antivirus
  • Medium 6.1
    CVE-2021-27241

    This vulnerability allows local attackers to delete arbitrary directories on affected installations of Avast Premium Se…

    Avast Premium Security