CVE-2026-21020

CVE-2026-21020 is a high-severity vulnerability in Samsung Android with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

• Severity: High (CVSS 3.x base score 7.8)
• CVSS v4: 5.1
• EPSS exploit prediction: 0% (1st percentile)
• Actively exploited: Not listed in CISA KEV
• EU (EUVD) id: EUVD-2026-29906
• Affected product: Samsung Android
• Published: 2026-05-13
• Last modified: 2026-06-17

Description

Improper export of android application components in OmaCP prior to SMR May-2026 Release 1 allows local attackers to trigger privileged functions.

Frequently asked questions

What is CVE-2026-21020?

Improper export of android application components in OmaCP prior to SMR May-2026 Release 1 allows local attackers to trigger privileged functions.

How severe is CVE-2026-21020?

CVE-2026-21020 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-21020 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-21020?

CVE-2026-21020 primarily affects Samsung Android. In total, 82 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-21020?

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.

Does CVE-2026-21020 have an EU (EUVD) identifier?

Yes. CVE-2026-21020 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29906.

When was CVE-2026-21020 published?

CVE-2026-21020 was published on 2026-05-13 and last updated on 2026-06-17.

References

• https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=05

Affected products (82)

• cpe:2.3:o:samsung:android:14.0:-:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-apr-2022-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-apr-2023-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-apr-2024-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-apr-2025-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-apr-2026-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-aug-2022-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-aug-2023-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-aug-2024-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-aug-2025-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-dec-2021-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-dec-2022-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-dec-2023-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-dec-2024-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-dec-2025-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-feb-2022-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-feb-2023-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-feb-2024-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-feb-2025-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-feb-2026-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jan-2022-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jan-2023-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jan-2024-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jan-2025-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jan-2026-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jul-2022-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jul-2023-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jul-2024-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jul-2025-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jun-2022-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jun-2023-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jun-2024-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-jun-2025-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-mar-2022-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-mar-2023-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-mar-2024-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-mar-2025-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-mar-2026-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-may-2022-r1:*:*:*:*:*:*
• cpe:2.3:o:samsung:android:14.0:smr-may-2023-r1:*:*:*:*:*:*

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