How severe is CVE-2020-12857?

CVE-2020-12857 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-12857 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12857?

CVE-2020-12857 affects Health Covidsafe. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-12857?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-12857 published?

CVE-2020-12857 was published on 2020-05-18 and last updated on 2026-06-17.

CVE-2020-12857

CVE-2020-12857 is a high-severity vulnerability in Health Covidsafe with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-459.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-459
Affected product: Health Covidsafe
Published: 2020-05-18
Last modified: 2026-06-17

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.

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 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-12857 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12857?: CVE-2020-12857 affects Health Covidsafe. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12857?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-12857 published?: CVE-2020-12857 was published on 2020-05-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:health:covidsafe:*:*:*:*:*:android:*:*

More vulnerabilities in Health Covidsafe

CVE-2020-12856 — Critical (CVSS 9.8): OpenTrace, as used in COVIDSafe through v1.0.17, TraceTogether, ABTraceTogether, and other applications on iOS and…
CVE-2020-12858 — High (CVSS 7.5): Non-reinitialisation of random data in the advertising payload in COVIDSafe v1.0.15 and v1.0.16 allows a remote…
CVE-2020-12717 — Medium (CVSS 6.5): The COVIDSafe (Australia) app 1.0 and 1.1 for iOS allows a remote attacker to crash the app, and consequently interfere…
CVE-2020-14292 — Medium (CVSS 5.7): In the COVIDSafe application through 1.0.21 for Android, unsafe use of the Bluetooth transport option in the GATT…
CVE-2020-12860 — Medium (CVSS 5.3): COVIDSafe through v1.0.17 allows a remote attacker to access phone name and model information because a BLE device can…
CVE-2020-12859 — Medium (CVSS 5.3): Unnecessary fields in the OpenTrace/BlueTrace protocol in COVIDSafe through v1.0.17 allow a remote attacker to identify…

All CVEs affecting Health Covidsafe →

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