← Back to CVE List

Vulnerability Intelligence Report

CVE-2021-29241

CODESYS Gateway 3 before 3.5.16.70 has a NULL pointer dereference that may result in a denial of service (DoS).

No Active Exploit Signals

CVSS Base Score

7.5

HIGH

Exploitability:3.9

Impact Score:3.6

EPSS Probability:1.42%

Executive Threat Verdict

Evaluating...

Evaluating Threat Landscape...

Assessing known weaponization, exploitation telemetry, and federal advisories.

Attack Surface

—

Authentication

—

Weaponization

—

SSVC Action

—

Weaknesses (CWE)

Affected Products & Versions

Vendor	Product	Affected Versions
No affected products specified.

Exploitation & Remediation

References & Technical Advisories

NVD Listing ↗ MITRE Listing ↗

No reference links found.

Threat Intelligence Signals

EPSS Score

1.418%

GitHub Advisory

GHSA-2hc4-qjj9-7p6r ↗

CVSS Vector Breakdown

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality

Integrity

Availability

Identity & Timeline

Status	PUBLISHED
Assigning Authority	MITRE Corporation · N/A · USA
Reserved	2021-03-25T00:00:00
Published	2021-05-03T13:17:03
Last Updated	2026-05-29T14:01:18

MITRE ATT&CK Mapping

Tactics

Techniques

CVE-2021-29241

—

Public Weaponization & Exploit Code Exploit-DB Catalog

Weaknesses (CWE)

Affected Products & Versions

Exploitation & Remediation

References & Technical Advisories

Threat Intelligence Signals

CVSS Vector Breakdown

Identity & Timeline

SSVC Prioritization

MITRE ATT&CK Mapping

CVE-2021-29241

—

Public Weaponization & Exploit Code Exploit-DB Catalog

Weaknesses (CWE)

Affected Products & Versions

Exploitation & Remediation

References & Technical Advisories

Threat Intelligence Signals

CVSS Vector Breakdown

Identity & Timeline

SSVC Prioritization

MITRE ATT&CK Mapping

Community Chatter & Buzz

Related Intelligence

SHARE INTELLIGENCE WIRE