CVE-2021-38443
CRITICALCVSS 9.8/10EPSS 2.08%
Last modified
CVE-2021-38443 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.08% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Eclipse | Cyclonedds | < 0.8.0 |
References
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02Third Party Advisory, US Government Resource
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-38443?
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.
How severe is CVE-2021-38443?
CVE-2021-38443 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.08% probability of exploitation in the next 30 days.
How do I fix CVE-2021-38443?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-38443?
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Scan your code nowSource: NVD / NIST