Medium severity6.6NVD Advisory· Published May 5, 2022· Updated Jun 17, 2026

CVE-2021-38443

Description

Eclipse CycloneDDS versions prior to 0.8.0 improperly handle invalid structures, which may allow an attacker to write arbitrary values in the XML parser.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Eclipse/Cyclonedds
cpe:2.3:a:eclipse:cyclonedds:*:*:*:*:*:*:*:*
Range: <0.8.0
Eclipse/Cyclone DDSllm-fuzzy2 versions
<0.8.0+ 1 more
- (no CPE)range: <0.8.0
- (no CPE)range: unspecified

Patches

Vulnerability mechanics

References

www.cisa.gov/uscert/ics/advisories/icsa-21-315-02nvdThird Party AdvisoryUS Government Resource
projects.eclipse.org/projects/iot.cycloneddsnvdProduct

News mentions

No linked articles in our index yet.

Severity

MediumCVSS v3.1

6.6/ 10

Attack vector: Local
Complexity: Low
Privileges: Low
User interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: High

Vector

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

EPSS

Probability of exploitation in the next 30 days.

2.10%

VYPR risk score

Composite of severity, exploitation, and reach.

0.43medium

cvss	0.429
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-228
Improper Handling of Syntactically Invalid Structure

CVE ID

CVE-2021-38443

Credits

FM
Federico Maggi (Trend Micro Research), Ta-Lun Yen, and Chizuru Toyama (TXOne Networks, Trend Micro) reported these vulnerabilities to CISA. In addition, Patrick Kuo, Mars Cheng (TXOne Networks, Trend Micro), Víctor Mayoral-Vilches (Alias Robotics), and Erik Boasson (ADLINK Technology) also contributed to this research.
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