How severe is CVE-2025-21035?

CVE-2025-21035 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-21035 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-21035?

CVE-2025-21035 affects Samsung Calendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-21035?

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

Does CVE-2025-21035 have an EU (EUVD) identifier?

Yes. CVE-2025-21035 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27692.

When was CVE-2025-21035 published?

CVE-2025-21035 was published on 2025-09-03 and last updated on 2026-06-17.

CVE-2025-21035

CVE-2025-21035 is a medium-severity vulnerability in Samsung Calendar with a CVSS 3.x base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-27692
Affected product: Samsung Calendar
Published: 2025-09-03
Last modified: 2026-06-17

Description

Improper access control in Samsung Calendar prior to version 12.5.06.5 in Android 14 and 12.6.01.12 in Android 15 allows physical attackers to access data across multiple user profiles.

Frequently asked questions

What is CVE-2025-21035?: Improper access control in Samsung Calendar prior to version 12.5.06.5 in Android 14 and 12.6.01.12 in Android 15 allows physical attackers to access data across multiple user profiles.
How severe is CVE-2025-21035?: CVE-2025-21035 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-21035 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-21035?: CVE-2025-21035 affects Samsung Calendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-21035?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-21035 have an EU (EUVD) identifier?: Yes. CVE-2025-21035 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27692.
When was CVE-2025-21035 published?: CVE-2025-21035 was published on 2025-09-03 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=09

Affected products (1)

cpe:2.3:a:samsung:calendar:*:*:*:*:*:*:*:*

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