What is the CVSS score of CVE-2021-42543?

CVE-2021-42543 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.8%.

Daqfactory CVE-2021-42543

HIGH

Use of Inherently Dangerous Function (CWE-242)

2021-11-05 ics-cert@hq.dhs.gov

RCE Daqfactory Azeotech

7.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-242 ASVS 5.0 V15 - Secure Coding and Architecture Use of inherently dangerous function
Impact	CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, no privileges required, user interaction required.
Exploit ScenarioDerived	Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.8% exploitation probability (EPSS)

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AnalysisAI

The affected application uses specific functions that could be abused through a crafted project file, which could lead to code execution, system reboot, and system shutdown. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-242. The affected application uses specific functions that could be abused through a crafted project file, which could lead to code execution, system reboot, and system shutdown. Affected products include: Azeotech Daqfactory.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

The affected application uses specific functions that could be abused through a crafted project file, which could lead to code execution, system reboot, and system shutdown.

Threat Intelligence Overview

EPSS Score

0.8%

Top 49% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.8%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Defer

Exploitation· derived

None

System Exposure· derived

Small

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +39

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:a:azeotech:daqfactory:*:*:*:*:*:*:*:*

cpe:2.3:a:azeotech:daqfactory:18.1:build_2347:*:*:*:*:*:*

More in Daqfactory

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CVE-2026-12390 HIGH Act Now

8.4 Jun 18

Code execution in AzeoTech DAQFactory versions 21.1 and prior is achievable when a user opens a maliciously crafted .ctl

CVE-2026-12921 HIGH Act Now

8.4 Jun 25

Arbitrary code execution in AzeoTech DAQFactory (versions 21.1 and prior) arises from a use-after-free flaw triggered wh

CVE-2025-66589 HIGH This Week

8.4 Dec 11

Out-of-bounds read in AzeoTech DAQFactory 20.7 (Build 2555) allows local attackers to disclose sensitive process memory

CVE-2025-66590 HIGH This Week

8.4 Dec 11

Out-of-bounds write in AzeoTech DAQFactory release 20.7 (Build 2555) enables arbitrary code execution or denial of servi

CVE-2025-66588 HIGH This Week

8.4 Dec 11

Arbitrary code execution in AzeoTech DAQFactory release 20.7 (Build 2555) is possible when a local user opens or interac

CVE-2021-42698 HIGH This Week

7.8 Nov 05

Project files are stored memory objects in the form of binary serialized data that can later be read and deserialized ag

CVE-2025-66585 HIGH This Week

7.3 Dec 11

Local code execution in AzeoTech DAQFactory release 20.7 (Build 2555) is possible when a user opens a maliciously crafte

CVE-2025-66586 HIGH This Week

7.3 Dec 11

Type confusion in AzeoTech DAQFactory 20.7 (Build 2555) enables arbitrary code execution when a user opens a maliciously

CVE-2017-12699 HIGH This Week

7.1 Sep 09

An Incorrect Default Permissions issue was discovered in AzeoTech DAQFactory versions prior to 17.1. Rated high severity

CVE-2021-42701 MEDIUM This Month

6.3 Nov 05

An attacker could prepare a specially crafted project file that, if opened, would attempt to connect to the cloud and tr

CVE-2021-42699 MEDIUM This Month

5.9 Nov 05

The affected product is vulnerable to cookie information being transmitted as cleartext over HTTP. Rated medium severity

CVE-2017-5147 MEDIUM This Month

5.3 Sep 09

An Uncontrolled Search Path Element issue was discovered in AzeoTech DAQFactory versions prior to 17.1. Rated medium sev

Same weakness CWE-242 – Use of Inherently Dangerous Function

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7.3

7.8

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CVE-2017-7269 CRITICAL POC

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9.8

CVE-2012-4681 CRITICAL POC

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CVE-2023-3519 CRITICAL POC

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CVE-2015-5119 CRITICAL POC

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CVE-2016-4117 CRITICAL POC

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CVE-2015-3113 CRITICAL POC

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References

Advisories & patches

REF https://us-cert.cisa.gov/ics/advisories/icsa-21-308-02

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

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