Vulnerability in Google Exposure Notification Verification Server
CVE-2021-22565
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (36.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
Weakness classification (CWE)
References
- github.com/google/exposure-notifications-verification-server/security/advisorie… (Third Party Advisory)
- github.com/google/exposure-notifications-verification-server/releases/tag/v1.1.2 (Patch, Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2021-22565?
- CVE-2021-22565 is a medium-severity vulnerability in Google Exposure Notification Verification Server, classified under Improper Access Control. CVSS score: 6.5/10. Published 2021-12-09.
- How severe is CVE-2021-22565?
- Medium severity. CVSS v3 base score is 6.5 out of 10.