How severe is CVE-2026-21000?

CVE-2026-21000 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-21000 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-21000?

CVE-2026-21000 affects Samsung Galaxy Store. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-21000?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-21000 have an EU (EUVD) identifier?

Yes. CVE-2026-21000 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12317.

When was CVE-2026-21000 published?

CVE-2026-21000 was published on 2026-03-16 and last updated on 2026-06-17.

CVE-2026-21000

CVE-2026-21000 is a medium-severity vulnerability in Samsung Galaxy Store with a CVSS 3.x base score of 5.5. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v4: 7.0
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12317
Weakness: CWE-22
Affected product: Samsung Galaxy Store
Published: 2026-03-16
Last modified: 2026-06-17

Description

Improper access control in Galaxy Store prior to version 4.6.03.8 allows local attacker to create file with Galaxy Store privilege.

Frequently asked questions

What is CVE-2026-21000?: Improper access control in Galaxy Store prior to version 4.6.03.8 allows local attacker to create file with Galaxy Store privilege.
How severe is CVE-2026-21000?: CVE-2026-21000 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-21000 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-21000?: CVE-2026-21000 affects Samsung Galaxy Store. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-21000?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-21000 have an EU (EUVD) identifier?: Yes. CVE-2026-21000 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12317.
When was CVE-2026-21000 published?: CVE-2026-21000 was published on 2026-03-16 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2026&month=03

Affected products (1)

cpe:2.3:a:samsung:galaxy_store:*:*:*:*:*:*:*:*

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