CVE-2023-1586 Race condition in AVG Antivirus
A TOCTOU race condition in the restore process allows attackers to create arbitrary files, potentially leading to code execution on Windows systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-1586?
CVE-2023-1586 is a medium-severity vulnerability in AVG Antivirus, published on 19 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the restore process leading to arbitrary file creation. The issue was fixed with Avast and AVG Antivirus version 22.11
Weakness: CWE-367
Which versions are affected by CVE-2023-1586?
It affects 2 products.
Products include Avast Antivirus, Avg Anti-Virus.
How do I fix CVE-2023-1586?
No fix has been published for CVE-2023-1586 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-1586 being exploited?
There is no known exploitation of CVE-2023-1586 in the wild and no public exploit code.
Other vulnerabilities in AVG 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-h5r6-2gq4-p8x5.