CVE-2019-10190
7.5 · HIGHOverview
CVE-2019-10190 is a high-severity vulnerability affecting nic knot_resolver. It was published on July 16, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 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
A vulnerability was discovered in DNS resolver component of knot resolver through version 3.2.0 before 4.1.0 which allows remote attackers to bypass DNSSEC validation for non-existence answer. NXDOMAIN answer would get passed through to the client even if its DNSSEC validation failed, instead of sending a SERVFAIL packet. Caching is not affected by this particular bug but see CVE-2019-10191.
Remediation
Check the references section for vendor advisories and patches from nic. Update knot_resolver 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 |
|---|---|---|---|
| nic | knot_resolver | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2019-10190?
CVE-2019-10190 is a high-severity vulnerability affecting nic knot_resolver. It was published on July 16, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2019-10190?
This vulnerability has a CVSS 3.1 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-2019-10190?
Check the references section for vendor advisories and patches from nic. Update knot_resolver 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-2019-10190?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-10190 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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