CVE-2024-5803 Local privelage escalation via COM hijacking
Local attackers can escalate privileges via COM hijacking in AVG/Avast Antivirus when self-protection is disabled due to a race condition.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2024-5803?
CVE-2024-5803 is a high-severity vulnerability in AVG/Avast Antivirus, published on 3 Oct 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-367
Which versions are affected by CVE-2024-5803?
How do I fix CVE-2024-5803?
No fix has been published for CVE-2024-5803 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-5803 being exploited?
There is no known exploitation of CVE-2024-5803 in the wild and no public exploit code.
Sources
Also known as GHSA-ccfh-v7cp-3943.