What is the CVSS score of CVE-2021-22565?

CVE-2021-22565 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L. EPSS exploitation probability: 0.4%.

Is there a patch available for CVE-2021-22565?

Yes, a patch is available for CVE-2021-22565. Update the affected software to the latest version immediately.

Exposure Notification Verification Server CVE-2021-22565

MEDIUM

Improper Access Control (CWE-284)

2021-12-09 cve-coordination@google.com

Authentication Bypass Exposure Notification Verification Server

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Lifecycle Timeline

CVE Published

Dec 09, 2021 - 13:15 nvd

MEDIUM 6.5

DescriptionNVD

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.

AnalysisAI

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. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-284. 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. Affected products include: Google Exposure Notification Verification Server.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.