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CVE-2021-25394

Samsung Mobile Devices Race Condition

6.4 MEDIUMActively exploited (CISA KEV)EPSS 0.40%
  1. Published11 Jun 2021
  2. Added to CISA KEV29 Jun 2023
  3. Remediation due20 Jul 2023
Actively exploited (CISA KEV)

Samsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.

Added to KEV: 29 Jun 2023Federal remediation due: 20 Jul 2023

Description

A use after free vulnerability via race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows arbitrary write given a radio privilege is compromised.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityHigh
Privileges requiredHigh
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

Samsung Android10.0 · 11.0 · 8.1 · 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-2021-25394 being actively exploited?

Yes. CVE-2021-25394 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 29 Jun 2023.

How severe is CVE-2021-25394?

CVE-2021-25394 has a CVSS 3.1 base score of 6.4, rated medium. EPSS estimates a 0.40% probability of exploitation.

Which products are affected by CVE-2021-25394?

Affected products include Samsung Android.

How do I fix CVE-2021-25394?

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-2021-25394 against the real software inventory on every managed device, every day. 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, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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