CVE-2019-9578
7.5 · HIGHOverview
CVE-2019-9578 is a high-severity vulnerability affecting yubico libu2f-host. It was published on March 5, 2019 and has a CVSS 3.0 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
In devs.c in Yubico libu2f-host before 1.1.8, the response to init is misparsed, leaking uninitialized stack memory back to the device.
Remediation
Check the references section for vendor advisories and patches from yubico. Update libu2f-host to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| yubico | libu2f-host | >= 0, < 1.1.8 | Affected |
References
Frequently Asked Questions
What is CVE-2019-9578?
CVE-2019-9578 is a high-severity vulnerability affecting yubico libu2f-host. It was published on March 5, 2019 and has a CVSS 3.0 base score of 7.5 (HIGH).
How severe is CVE-2019-9578?
This vulnerability has a CVSS 3.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-9578?
Check the references section for vendor advisories and patches from yubico. Update libu2f-host to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-9578?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-9578 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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