What is CVE-2017-20226?

CVE-2017-20226 is a high-severity vulnerability in Msk Mapscrn, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-03-28.

How severe is CVE-2017-20226?

High severity. CVSS v3 base score is 8.4 out of 10.

Buffer overflow in Msk Mapscrn

CVE-2017-20226

Mapscrn 2.0.3 contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized input buffer. Attackers can craft a malicious buffer with junk data, return address, NOP ins…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (5.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Msk Mapscrn — versions 2.03

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

ExploitDB-42144 (exploit)
Official Product Homepage (product)
VulnCheck Advisory: Mapscrn 2.0.3 Stack-Based Buffer Overflow (third-party-advisory)

Frequently asked questions

What is CVE-2017-20226?: CVE-2017-20226 is a high-severity vulnerability in Msk Mapscrn, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-03-28.
How severe is CVE-2017-20226?: High severity. CVSS v3 base score is 8.4 out of 10.