{"id":"CVE-2020-12857","aliases":["EUVD-2020-5139"],"status":"published","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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01631,"percentile":0.76437,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-459"],"published":"2020-05-18T04:02:31Z","modified":"2026-06-17T02:52:26Z","products":[{"vendor":"health","product":"covidsafe"}],"references":[{"url":"https://www.health.gov.au/resources/apps-and-tools/covidsafe-app","tags":["x_refsource_MISC","x_transferred","Product","Vendor Advisory"]},{"url":"https://docs.google.com/document/d/1u5a5ersKBH6eG362atALrzuXo3zuZ70qrGomWVEC27U/edit?usp=sharing","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://covidsafe.watch/issue-register/cve-2020-12857-tempid-identifier-was-static","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]}],"sources":{"cve":[{"id":"CVE-2020-12857","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.","status":"published","published":"2020-05-18T04:02:31Z","modified":"2024-08-04T12:04:22.886Z","updated_at":"2026-11-02T14:35:53.236501Z"}],"euvd":[{"id":"EUVD-2020-5139","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.","status":"published","published":"2020-05-18T04:02:31Z","modified":"2024-08-04T12:04:22Z","updated_at":"2026-11-03T03:07:39.298733Z"}],"nvd":[{"id":"CVE-2020-12857","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.","status":"published","published":"2020-05-18T05:15:14.26Z","modified":"2026-06-17T02:52:26.29Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-459"],"updated_at":"2026-11-02T14:06:00.784809Z"}]}}