HOMEVULNERABILITIESCVE-2018-7502
HIGH

CVE-2018-7502

CWE-822Published: March 23, 2018· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

Kernel drivers in Beckhoff TwinCAT 3.1 Build 4022.4, TwinCAT 2.11 R3 2259, and TwinCAT 3.1 lack proper validation of user-supplied pointer values. An attacker who is able to execute code on the target may be able to exploit this vulnerability to obtain SYSTEM privileges.

NVD Source

Technical Analysis

CVE-2018-7502 requires local access, meaning attackers must already have a foothold on the target system.

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

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

beckhoff2 product(s)
twincattwincat c\+\+
Source: NVD CPE · 3 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
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/bid/103487
ADVISORYhttps://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2018-001.pdf
ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSA-18-081-02
ADVISORYhttp://www.securityfocus.com/bid/103487
ADVISORYhttps://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2018-001.pdf
ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSA-18-081-02

All References (8)

→
http://www.securityfocus.com/bid/103487Third Party Advisory · VDB Entry
→
https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2018-001.pdfVendor Advisory
→
https://ics-cert.us-cert.gov/advisories/ICSA-18-081-02Mitigation · Third Party Advisory · US Government Resource
→
https://srcincite.io/advisories/src-2018-0007/
→
http://www.securityfocus.com/bid/103487Third Party Advisory · VDB Entry
→
https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2018-001.pdfVendor Advisory
→
https://ics-cert.us-cert.gov/advisories/ICSA-18-081-02Mitigation · Third Party Advisory · US Government Resource
→
https://srcincite.io/advisories/src-2018-0007/

Quick Facts

CVE IDCVE-2018-7502
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-822
CISA KEVNo
Affected1 vendor(s)
PublishedMar 23, 2018

Related CVEs (CWE-822)

CVE-2018-17893
9.8
CVE-2018-12548
9.8
CVE-2018-14811
9.8
CVE-2018-7497
9.8
CVE-2026-48137
9.8
CVE-2023-1437
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-7502 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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