How severe is CVE-2021-25418?

CVE-2021-25418 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-25418 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25418?

CVE-2021-25418 affects Samsung Internet. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-25418?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-25418 published?

CVE-2021-25418 was published on 2021-06-11 and last updated on 2026-06-17.

CVE-2021-25418

CVE-2021-25418 is a high-severity vulnerability in Samsung Internet with a CVSS 3.x base score of 7.8. 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-863.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.4
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Samsung Internet
Published: 2021-06-11
Last modified: 2026-06-17

Description

Improper component protection vulnerability in Samsung Internet prior to version 14.0.1.62 allows untrusted applications to execute arbitrary activity in specific condition.

Frequently asked questions

What is CVE-2021-25418?: Improper component protection vulnerability in Samsung Internet prior to version 14.0.1.62 allows untrusted applications to execute arbitrary activity in specific condition.
How severe is CVE-2021-25418?: CVE-2021-25418 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-25418 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25418?: CVE-2021-25418 affects Samsung Internet. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-25418?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-25418 published?: CVE-2021-25418 was published on 2021-06-11 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=6

Affected products (1)

cpe:2.3:a:samsung:internet:*:*:*:*:*:*:*:*

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