How severe is CVE-2020-28340?

CVE-2020-28340 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-28340 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-28340?

CVE-2020-28340 primarily affects Google Android. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-28340?

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

When was CVE-2020-28340 published?

CVE-2020-28340 was published on 2020-11-08 and last updated on 2026-06-17.

CVE-2020-28340

CVE-2020-28340 is a critical-severity vulnerability in Google Android with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Google Android
Published: 2020-11-08
Last modified: 2026-06-17

Description

An issue was discovered on Samsung mobile devices with O(8.x), P(9.0), Q(10.0), and R(11.0) software. Attackers can bypass Factory Reset Protection (FRP) via Secure Folder. The Samsung ID is SVE-2020-18546 (November 2020).

Frequently asked questions

What is CVE-2020-28340?: An issue was discovered on Samsung mobile devices with O(8.x), P(9.0), Q(10.0), and R(11.0) software. Attackers can bypass Factory Reset Protection (FRP) via Secure Folder. The Samsung ID is SVE-2020-18546 (November 2020).
How severe is CVE-2020-28340?: CVE-2020-28340 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-28340 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-28340?: CVE-2020-28340 primarily affects Google Android. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-28340?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-28340 published?: CVE-2020-28340 was published on 2020-11-08 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/securityUpdate.smsb

Affected products (5)

cpe:2.3:o:google:android:8.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:8.1:*:*:*:*:*:*:*
cpe:2.3:o:google:android:9.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*

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