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CVE-2018-20410

23
FAUCET Score

CVE-2018-20410 describes a stack-based buffer overflow vulnerability in WellinTech KingSCADA versions prior to 3.7.0.0.1. This critical flaw can be triggered remotely by sending a specially crafted packet to the AlarmServer (AEserver.exe) service on TCP port 12401. With a CVSS score of 7.5 (HIGH), it allows for a complete denial of service (availability impact) without requiring user interaction or authentication. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.7.0.0.1CPE matchmatch criteria
cpe:2.3:a:wellintech:kingscada:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.59%
Probability of exploitation in next 30 days
EPSS Percentile
73.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0159 is in the 55th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / flypuma/vul/blob/master/kingview/copy_argumengt_overflow/Debugging.md
Third Party Advisory
github.com / flypuma/vul/blob/master/kingview/copy_argumengt_overflow/poc.py
ExploitThird Party Advisory