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CVE-2017-6027

32
FAUCET Score

CVE-2017-6027 describes an arbitrary file upload vulnerability in 3S-Smart Software Solutions GmbH CODESYS Web Server versions 2.3 and prior, a component of the CODESYS WebVisu software. This critical flaw, rated 9.8 CVSS, allows an unauthenticated attacker to upload dangerous file types via a specially crafted web request, potentially leading to remote code execution. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 11 mentions and media coverage, indicating awareness of its potential impact.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.3CPE matchmatch criteria
cpe:2.3:a:codesys:web_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.63%
Probability of exploitation in next 30 days
EPSS Percentile
83.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0263 is in the 74th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ics-cert.us-cert.gov / advisories/ICSA-17-087-02
Third Party AdvisoryUS Government Resource
securityfocus.com / bid/97174
Third Party AdvisoryVDB Entry