How severe is CVE-2025-20911?

CVE-2025-20911 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2025-20911 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-2025-20911?

CVE-2025-20911 affects Samsung Wear Os. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-20911?

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

Does CVE-2025-20911 have an EU (EUVD) identifier?

Yes. CVE-2025-20911 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6139.

When was CVE-2025-20911 published?

CVE-2025-20911 was published on 2025-03-06 and last updated on 2026-06-17.

CVE-2025-20911

CVE-2025-20911 is a medium-severity vulnerability in Samsung Wear Os with a CVSS 3.x base score of 4.4. 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 4.4)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-6139
Affected product: Samsung Wear Os
Published: 2025-03-06
Last modified: 2026-06-17

Description

Improper access control in sem_wifi service prior to SMR Mar-2025 Release 1 allows privileged local attackers to update MAC address of Galaxy Watch.

Frequently asked questions

What is CVE-2025-20911?: Improper access control in sem_wifi service prior to SMR Mar-2025 Release 1 allows privileged local attackers to update MAC address of Galaxy Watch.
How severe is CVE-2025-20911?: CVE-2025-20911 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2025-20911 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-2025-20911?: CVE-2025-20911 affects Samsung Wear Os. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-20911?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-20911 have an EU (EUVD) identifier?: Yes. CVE-2025-20911 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-6139.
When was CVE-2025-20911 published?: CVE-2025-20911 was published on 2025-03-06 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=03

Affected products (1)

cpe:2.3:o:samsung:wear_os:5.0:*:*:*:*:*:*:*

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