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Product · Gen Digital

Avira Internet Security

3 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

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  • High 7.8
    CVE-2026-27748

    Avira Internet Security Arbitrary File Deletion via Improper Link Resolution

    Avira Internet Security contains an improper link resolution vulnerability in the Software Updater component. During the update process, a privileged service running as SYSTEM deletes a file under C:\\ProgramData without validating whether the path resolves t…

    Gen Digital Avira Internet Security
  • High 7.8
    CVE-2026-27749

    Avira Internet Security System Speedup Insecure Deserialization

    Avira Internet Security contains a deserialization of untrusted data vulnerability in the System Speedup component. The Avira.SystemSpeedup.RealTimeOptimizer.exe process, which runs with SYSTEM privileges, deserializes data from a file located in C:\\ProgramD…

    Gen Digital Avira Internet Security
  • High 7.8
    CVE-2026-27750

    Avira Internet Security Optimizer TOCTOU

    Avira Internet Security contains a time-of-check time-of-use (TOCTOU) vulnerability in the Optimizer component. A privileged service running as SYSTEM identifies directories for cleanup during a scan phase and subsequently deletes them during a separate clean…

    Gen Digital Avira Internet Security