CVE-2021-43547

Q: How do I fix CVE-2021-43547?

Upgrade coredx dds to 5.9.1 or later.

Q: Is CVE-2021-43547 being actively exploited?

Not that we know of. CVE-2021-43547 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 2.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 83% of all scored CVEs.

Q: How severe is CVE-2021-43547?

CVE-2021-43547 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2021-43547 affect?

Published advisories record a fix for coredx dds (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGHEPSS 83th pctl

7.5

CVSS v3

NVD

Description

TwinOaks Computing CoreDX DDS versions prior to 5.9.1 are susceptible to exploitation when an attacker sends a specially crafted packet to flood target devices with unwanted traffic. This may result in a denial-of-service condition and information exposure.

CWE-406

How to fix

Remediation Available

coredx ddsNVD

Affected:< 5.9.1Fixed in:5.9.1CVE-2021-43547derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

2.43%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Vendor Advisory1

twinoakscomputing.com

Third-Party Advisory1

cisa.gov

Related Vulnerabilities

Other CWE-406 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-38425	High	7.5	5.0%	-	Fix
CVE-2021-38487	High	8.2	3.3%	-	Fix
CVE-2022-0028	High	8.6	2.4%	KEV	Fix
CVE-2019-14850	Low	3.7	1.6%	-	Fix
CVE-2021-38429	Medium	6.6	1.4%	-	Fix
CVE-2020-10772	High	7.5	1.3%	-	-

Common questions

How do I fix CVE-2021-43547?

Upgrade coredx dds to 5.9.1 or later.

Is CVE-2021-43547 being actively exploited?

Not that we know of. CVE-2021-43547 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 2.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 83% of all scored CVEs.

How severe is CVE-2021-43547?

CVE-2021-43547 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2021-43547 affect?

Published advisories record a fix for coredx dds (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.