What is CVE-2023-54334?

CVE-2023-54334 is a critical-severity vulnerability in Explorerplusplus Explorer\+\+, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2026-01-13.

How severe is CVE-2023-54334?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Explorerplusplus Explorer\+\+

CVE-2023-54334

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 o…

Vulnerability class: Buffer Overflow

EPSS: 0.005 (38.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Explorerplusplus Explorer\+\+ — versions 1.3.5.531
Explorerplusplus Explorer32++ — versions 1.3.5.531

Weakness classification (CWE)

References

disclosure@vulncheck.com (Exploit, Third Party Advisory, exploit)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2023-54334?: CVE-2023-54334 is a critical-severity vulnerability in Explorerplusplus Explorer\+\+, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2026-01-13.
How severe is CVE-2023-54334?: Critical severity. CVSS v3 base score is 9.8 out of 10.