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CVE-2021-25337

Samsung Mobile Devices Improper Access Control

4.4 MEDIUMActively exploited (CISA KEV)EPSS 2.81%
  1. Published4 Mar 2021
  2. Added to CISA KEV8 Nov 2022
  3. Remediation due29 Nov 2022
Actively exploited (CISA KEV)

Samsung mobile devices contain an improper access control vulnerability in clipboard service which allows untrusted applications to read or write arbitrary files. This vulnerability was chained with CVE-2021-25369 and CVE-2021-25370.

Added to KEV: 8 Nov 2022Federal remediation due: 29 Nov 2022

Description

Improper access control in clipboard service in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows untrusted applications to read or write certain local files.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected products

Samsung Android10.0 · 11.0 · 9.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2021-25337 being actively exploited?

Yes. CVE-2021-25337 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 8 Nov 2022.

How severe is CVE-2021-25337?

CVE-2021-25337 has a CVSS 3.1 base score of 4.4, rated medium. EPSS estimates a 2.81% probability of exploitation.

Which products are affected by CVE-2021-25337?

Affected products include Samsung Android.

How do I fix CVE-2021-25337?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2021-25337 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.