CVE-2024-9481 Out of Bounds write on scan of malformed eml file may crash the application
A malformed eml file triggers an out-of-bounds write in the antivirus engine, crashing the application on macOS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-9481?
CVE-2024-9481 is a medium-severity memory corruption vulnerability in AVG/Avast Antivirus, published on 4 Oct 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An out-of-bounds write in the engine module in AVG/Avast Antivirus signature <24092400 released on 24/Sep/2024 on MacOS allows a malformed eml file to crash the application during file processing.
Weakness: CWE-787
Which versions are affected by CVE-2024-9481?
It affects 2 products.
Products include Avast Antivirus, Avg Antivirus.
How do I fix CVE-2024-9481?
No fix has been published for CVE-2024-9481 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-9481 being exploited?
There is no known exploitation of CVE-2024-9481 in the wild and no public exploit code.
Other vulnerabilities in AVG/Avast Antivirus
- CVE-2025-13032 Race condition in (Free/Inernet Security/Ultimate) Antivirus
- CVE-2020-10867 Security feature bypass in n/a
- CVE-2017-8307 Missing authorization in n/a
- CVE-2025-3500 Integer Overflow in Avast Antiviurs 25.1.981.6 on Windows may result in privilege escalation
- CVE-2021-45335 Missing authorization in n/a
Sources
Also known as GHSA-xfxr-3v89-hch2.