What is CVE-2023-40250?

CVE-2023-40250 is a high-severity vulnerability in Hancom Hcell, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2024-01-12.

How severe is CVE-2023-40250?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2023-40250 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Hancom Hcell

CVE-2023-40250

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Hancom HCell on Windows allows Overflow Buffers.This issue affects HCell: 12.0.0.893.

Vulnerability class: Buffer Overflow

EPSS: 0.006 (42.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Hancom Hcell — versions 12.0.0.893
Microsoft Windows

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

c0m0r1/c0m0r1

References

vuln@krcert.or.kr (Product)

Frequently asked questions

What is CVE-2023-40250?: CVE-2023-40250 is a high-severity vulnerability in Hancom Hcell, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2024-01-12.
How severe is CVE-2023-40250?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2023-40250 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.