CVE-2021-22565

Insufficient Granularity of Access Control in GAEN Notification Server

MEDIUM
6.5
CVSS Score
Published: December 9, 2021 at 12:55 PM UTC
Updated: June 17, 2026 at 03:37 AM UTC
1 product affected across 1 vendorExposure Notification Verification Server

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.1.2
Affected range stops below 1.1.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

6.5MEDIUMGoogle
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-284NVD-CWE-Other

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