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CVE-2021-22565

6.5 · MEDIUM

An attacker could prematurely expire a verification code, making it unusable by the patient, making the patient unable to upload their TEKs to generate exposure notifications.

Published Dec 9, 2021CWE-284EPSS 0.44%

Overview

CVE-2021-22565 is a medium-severity vulnerability. It was published on December 9, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An attacker could prematurely expire a verification code, making it unusable by the patient, making the patient unable to upload their TEKs to generate exposure notifications. We recommend upgrading the Exposure Notification server to V1.1.2 or greater.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

GitHubgithub.com/google/exposure-notifications-verification-server/releases/tag/v1.1.2GitHubgithub.com/google/exposure-notifications-verification-server/security/advisories/GHSA-wx8q-rgfr-cf6vGitHubgithub.com/google/exposure-notifications-verification-server/releases/tag/v1.1.2GitHubgithub.com/google/exposure-notifications-verification-server/security/advisories/GHSA-wx8q-rgfr-cf6v

How CyberStrike helps

Frequently asked questions

What is CVE-2021-22565?

CVE-2021-22565 is a medium-severity vulnerability. It was published on December 9, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2021-22565?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-22565?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2021-22565?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-22565 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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