CVE-2020-14966
7.5 · HIGHOverview
CVE-2020-14966 is a high-severity vulnerability affecting kjur jsrsasign. It was published on June 22, 2020 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
An issue was discovered in the jsrsasign package through 8.0.18 for Node.js. It allows a malleability in ECDSA signatures by not checking overflows in the length of a sequence and '0' characters appended or prepended to an integer. The modified signatures are verified as valid. This could have a security-relevant impact if an application relied on a single canonical signature.
Remediation
Check the references section for vendor advisories and patches from kjur. Update jsrsasign 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 |
|---|---|---|---|
| kjur | jsrsasign | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2020-14966?
CVE-2020-14966 is a high-severity vulnerability affecting kjur jsrsasign. It was published on June 22, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2020-14966?
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-2020-14966?
Check the references section for vendor advisories and patches from kjur. Update jsrsasign 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-2020-14966?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-14966 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
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