HOMEVULNERABILITIESCVE-2017-17443
MEDIUM

CVE-2017-17443

CWE-20Published: June 13, 2018· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

OPC Foundation Local Discovery Server (LDS) 1.03.370 required a security update to resolve multiple vulnerabilities that allow attackers to trigger a crash by placing invalid data into the configuration file. This vulnerability requires an attacker with access to the file system where the configuration file is stored; however, if the configuration file is altered the LDS will be unavailable until it is repaired.

NVD Source

Technical Analysis

CVE-2017-17443 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

opcfoundation1 product(s)
local discovery server
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

ADVISORYhttps://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-17443.pdf
ADVISORYhttps://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-17443.pdf

All References (2)

→
https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-17443.pdfVendor Advisory
→
https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2017-17443.pdfVendor Advisory

Quick Facts

CVE IDCVE-2017-17443
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedJun 13, 2018

Related CVEs (CWE-20)

CVE-2026-12537
10.0
CVE-2011-4755
10.0
CVE-2026-48055
10.0
CVE-2009-1300
10.0
CVE-2026-0848
10.0
CVE-2026-33587
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-17443 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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