CVE-2021-33889
MEDIUMCVSS 6.8/10EPSS 0.33%
Last modified
CVE-2021-33889 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an inconsistency in the integer data type for metric_len.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.
Description
OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an inconsistency in the integer data type for metric_len.
Metrics
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openthread | Wpantund | <= 2021-07-02 |
References
- https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0019/FEYE-2021-0019.mdPatch, Third Party Advisory
- https://github.com/openthread/wpantund/issues/502Patch, Third Party Advisory
- https://github.com/openthread/wpantund/releasesThird Party Advisory
- https://github.com/fireeye/Vulnerability-Disclosures/blob/master/FEYE-2021-0019/FEYE-2021-0019.mdPatch, Third Party Advisory
- https://github.com/openthread/wpantund/issues/502Patch, Third Party Advisory
- https://github.com/openthread/wpantund/releasesThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-33889?
OpenThread wpantund through 2021-07-02 has a stack-based Buffer Overflow because of an inconsistency in the integer data type for metric_len.
How severe is CVE-2021-33889?
CVE-2021-33889 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.
How do I fix CVE-2021-33889?
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-2021-33889?
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Scan your code nowSource: NVD / NIST