HIGH
CVE-2021-43547
CWE-406Published: May 5, 2022· Updated: Jun 17, 2026
8.2
CVSS v3.1
Official 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.
Technical Analysis
CVE-2021-43547 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 8.2.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Affected Vendors & Products
twinoakscomputing1 product(s)
coredx dds
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
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (4)
→
http://www.twinoakscomputing.com/coredx/downloadVendor Advisory
→
https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02Third Party Advisory · US Government Resource
→
http://www.twinoakscomputing.com/coredx/downloadVendor Advisory
→
https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02Third Party Advisory · US Government Resource
Quick Facts
CVE IDCVE-2021-43547
CVSS Score8.2 / 10
SeverityHIGH
WeaknessCWE-406
CISA KEVNo
Affected1 vendor(s)
PublishedMay 5, 2022
Related CVEs (CWE-406)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-43547 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. CVE data is provided under the NVD usage policy.