CVE-2021-21677
8.8 · HIGHOverview
CVE-2021-21677 is a high-severity vulnerability affecting jenkins code_coverage_api. It was published on August 31, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Jenkins Code Coverage API Plugin 1.4.0 and earlier does not apply Jenkins JEP-200 deserialization protection to Java objects it deserializes from disk, resulting in a remote code execution vulnerability.
Remediation
Check the references section for vendor advisories and patches from jenkins. Update code_coverage_api 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 |
|---|---|---|---|
| jenkins | code_coverage_api | 0 | Affected |
Frequently Asked Questions
What is CVE-2021-21677?
CVE-2021-21677 is a high-severity vulnerability affecting jenkins code_coverage_api. It was published on August 31, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2021-21677?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-21677?
Check the references section for vendor advisories and patches from jenkins. Update code_coverage_api 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-2021-21677?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-21677 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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