How severe is CVE-2021-25338?

CVE-2021-25338 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over physical access with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity high, and availability low.

Is CVE-2021-25338 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25338?

CVE-2021-25338 primarily affects Google Android. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-25338?

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

When was CVE-2021-25338 published?

CVE-2021-25338 was published on 2021-03-04 and last updated on 2026-06-17.

CVE-2021-25338

CVE-2021-25338 is a medium-severity vulnerability in Google Android 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. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
CVSS v2: 3.6
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Google Android
Published: 2021-03-04
Last modified: 2026-06-17

Description

Improper memory access control in RKP in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to write certain part of RKP EL2 memory region.

Frequently asked questions

What is CVE-2021-25338?: Improper memory access control in RKP in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to write certain part of RKP EL2 memory region.
How severe is CVE-2021-25338?: CVE-2021-25338 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over physical access with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity high, and availability low.
Is CVE-2021-25338 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25338?: CVE-2021-25338 primarily affects Google Android. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-25338?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-25338 published?: CVE-2021-25338 was published on 2021-03-04 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*

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