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 instructions, and shellcode to overflow the stack and achieve code execution or denial of service.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (3.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Msk Mapscrn — versions 2.03
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/42144 (exploit)
- ccross.msk.su (product)
- www.vulncheck.com/advisories/mapscrn-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.