CVE-2020-24721

Published: Sep 30, 2020Modified: Jun 17, 2026

5.7

Vector

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

Exploitability: 0.5 / Impact: 5.2

Source: NVD

Description

An issue was discovered in the GAEN (aka Google/Apple Exposure Notifications) protocol through 2020-09-29, as used in COVID-19 applications on Android and iOS. It allows a user to be put in a position where he or she can be coerced into proving or disproving an exposure notification, because of the persistent state of a private framework.

Affected (2)

Products: Apple: Exposure Notifications · Google: Exposure Notifications

1 product

Exposure Notifications

1 product

Exposure Notifications

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Apple Exposure Notifications	Up to 1.5
Google Exposure Notifications	Up to 1.5

References (8)

http://packetstormsecurity.com/files/159419/Corona-Exposure-Notifications-API-Data-Leakage.html

Source: cve@mitre.org

Third Party AdvisoryVDB Entry

https://blog.google/inside-google/company-announcements/update-exposure-notifications

Source: cve@mitre.org

Vendor Advisory

https://github.com/minvws/nl-covid19-notification-app-coordination/blob/master/CVEs/CVE-2020-24721.txt

Source: cve@mitre.org

Third Party Advisory

https://seclists.org/fulldisclosure/2020/Sep/53

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://packetstormsecurity.com/files/159419/Corona-Exposure-Notifications-API-Data-Leakage.html

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party AdvisoryVDB Entry

https://blog.google/inside-google/company-announcements/update-exposure-notifications

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://github.com/minvws/nl-covid19-notification-app-coordination/blob/master/CVEs/CVE-2020-24721.txt

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://seclists.org/fulldisclosure/2020/Sep/53

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

Timeline

No history available yet.