7.5
CWE
367
Advisory Published
Updated

CVE-2024-5803: Local privelage escalation via COM hijacking

First published: Thu Oct 03 2024(Updated: )

The AVGUI.exe of AVG/Avast Antivirus before versions before 24.1 can allow a local attacker to escalate privileges via an COM hijack in a time-of-check to time-of-use (TOCTOU) when self protection is disabled.

Credit: security@nortonlifelock.com

Affected SoftwareAffected VersionHow to fix
AVG Antivirus Plus Firewall<24.1
Avast Antivirus<24.1

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Frequently Asked Questions

  • What is the severity of CVE-2024-5803?

    CVE-2024-5803 is considered a high severity vulnerability due to its potential for local privilege escalation.

  • How do I fix CVE-2024-5803?

    To fix CVE-2024-5803, update AVG or Avast Antivirus to version 24.1 or later where this vulnerability is addressed.

  • Who is affected by CVE-2024-5803?

    CVE-2024-5803 affects users of AVG and Avast Antivirus prior to version 24.1.

  • What kind of attack does CVE-2024-5803 enable?

    CVE-2024-5803 allows a local attacker to escalate privileges via a COM hijack exploit when self-protection is disabled.

  • What does TOCTOU mean in the context of CVE-2024-5803?

    TOCTOU refers to a time-of-check to time-of-use vulnerability that can be exploited when self-protection features are turned off.

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