CVE-2021-26237 Memory corruption in n/a
A memory corruption vulnerability in FastStone Image Viewer allows attackers to cause a denial of service or potentially execute arbitrary code via a malformed CUR file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-26237?
CVE-2021-26237 is a high-severity memory corruption vulnerability in n/a, published on 18 Mar 2021. 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
FastStone Image Viewer <= 7.5 is affected by a user mode write access violation at 0x00402d7d, triggered when a user opens or views a malformed CUR file that is mishandled by FSViewer.exe. Attackers could exploit this issue for a Denial of Service (DoS) or possibly to achieve code execution.
Weakness: CWE-787
Which versions are affected by CVE-2021-26237?
It affects 1 product.
Products include Faststone Image Viewer.
How do I fix CVE-2021-26237?
No fix has been published for CVE-2021-26237 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-2021-26237 being exploited?
There is no known exploitation of CVE-2021-26237 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2022-36947 Memory corruption in n/a
- CVE-2007-1942 Integer overflow in n/a
- CVE-2024-9112 FastStone Image Viewer PSD File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
- CVE-2024-9113 FastStone Image Viewer TGA File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
- CVE-2024-9114 FastStone Image Viewer GIF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Sources
Also known as GHSA-g3q2-r548-p52f.