CVE-2017-20226 — Mapscrn 2.0.3 Stack-Based Buffer Overflow

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HIGH

Mapscrn 2.0.3 Stack-Based Buffer Overflow

Published Mar 28, 2026

8.6

HIGH

CVSS 4.0

EPSS 0.15%

Description

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.

Affected products

Vendor Msk Product Mapscrn Default
n/a
- Version
  2.03
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Msk

Mapscrn

n/a

Version	Status	Constraints
2.03	affected	-

Remediation

No remediation recorded yet.

Metrics

0.15% 0.00150

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00150

Score over time

Mar–Oct 2026

EPSS v4
EPSS v5

Percentile over time

EPSS v4
EPSS v5

Table of values (3 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.15% (0.00150)	3.54th	v5 (v2026.06.15)
Jun 15, 2026	0.15% (0.00150)	4.50th	v5 (v2026.06.15)
Mar 28, 2026	0.01% (0.00012)	1.77th	v4 (v2025.03.14)

Weaknesses (1)

CWE-787

Out-of-bounds Write

References (3)

http://ccross.msk.su
product
https://www.exploit-db.com/exploits/42144
exploit
https://www.vulncheck.com/advisories/mapscrn-stack-based-buffer-overflow
third-party-advisory

Link	Providers	Tags
http://ccross.msk.su		product
https://www.exploit-db.com/exploits/42144		exploit
https://www.vulncheck.com/advisories/mapscrn-stack-based-buffer-overflow		third-party-advisory