CVE-2021-22569
7.5 · HIGHOverview
CVE-2021-22569 is a high-severity vulnerability affecting google google-protobuf. It was published on January 10, 2022 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 in protobuf-java allowed the interleaving of com.google.protobuf.UnknownFieldSet fields in such a way that would be processed out of order. A small malicious payload can occupy the parser for several minutes by creating large numbers of short-lived objects that cause frequent, repeated pauses. We recommend upgrading libraries beyond the vulnerable versions.
Remediation
Check the references section for vendor advisories and patches from google. Update google-protobuf 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 |
|---|---|---|---|
| google-protobuf | >= 0, < 3.19.2 | Affected | |
| protobuf-java | >= 0, < 3.16.1 | Affected | |
| protobuf-kotlin | >= 0, < 3.18.2 | Affected |
References
Frequently Asked Questions
What is CVE-2021-22569?
CVE-2021-22569 is a high-severity vulnerability affecting google google-protobuf. It was published on January 10, 2022 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2021-22569?
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-2021-22569?
Check the references section for vendor advisories and patches from google. Update google-protobuf 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-2021-22569?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-22569 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.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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