CVE-2023-54334 Explorer32++ 1.3.5.531 - Buffer overflow
Attackers can execute arbitrary code by providing a long file name argument to corrupt the Structured Exception Handler chain in Explorer32++.
- 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-2023-54334?
CVE-2023-54334 is a high-severity memory corruption vulnerability in Explorerplusplus Explorer32++, published on 13 Jan 2026. 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
Explorer32++ 1.3.5.531 contains a buffer overflow vulnerability in Structured Exception Handler (SEH) records that allows attackers to execute arbitrary code. Attackers can exploit the vulnerability by providing a long file name argument over 396 characters to corrupt the SEH chain and potentially execute malicious code.
Which versions are affected by CVE-2023-54334?
It affects 1 product.
Products include Explorerplusplus Explorer\+\+.
How do I fix CVE-2023-54334?
No fix has been published for CVE-2023-54334 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-2023-54334 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-54334 exists.
Other vulnerabilities in Explorerplusplus Explorer32++
Sources
Also known as GHSA-gjr3-g2r5-fvvj.