CVE-2020-12857

Name: CVE-2020-12857
Creator: NVD / NIST
Published: 2020-05-18T05:15:14.26+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.63%

Last modified Jun 17, 2026

CVE-2020-12857 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Caching of GATT characteristic values (TempID) in COVIDSafe v1.0.15 and v1.0.16 allows a remote attacker to long-term re-identify an Android device running COVIDSafe.. EPSS estimates a 1.63% chance of exploitation in the next 30 days.

Description

Caching of GATT characteristic values (TempID) in COVIDSafe v1.0.15 and v1.0.16 allows a remote attacker to long-term re-identify an Android device running COVIDSafe.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.63%

73.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-459

Affected Software

Vendor	Product	Versions
Health	Covidsafe	< 1.0.17

References

https://covidsafe.watch/issue-register/cve-2020-12857-tempid-identifier-was-staticThird Party Advisory
https://docs.google.com/document/d/1u5a5ersKBH6eG362atALrzuXo3zuZ70qrGomWVEC27U/edit?usp=sharingThird Party Advisory
https://www.health.gov.au/resources/apps-and-tools/covidsafe-appProduct, Vendor Advisory
https://covidsafe.watch/issue-register/cve-2020-12857-tempid-identifier-was-staticThird Party Advisory
https://docs.google.com/document/d/1u5a5ersKBH6eG362atALrzuXo3zuZ70qrGomWVEC27U/edit?usp=sharingThird Party Advisory
https://www.health.gov.au/resources/apps-and-tools/covidsafe-appProduct, Vendor Advisory

Timeline

Published: May 18, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12857?

Caching of GATT characteristic values (TempID) in COVIDSafe v1.0.15 and v1.0.16 allows a remote attacker to long-term re-identify an Android device running COVIDSafe.

How severe is CVE-2020-12857?

CVE-2020-12857 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.63% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12857?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-12857?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST