How severe is CVE-2021-25463?

CVE-2021-25463 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-25463 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25463?

CVE-2021-25463 affects Samsung Penup. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-25463?

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

When was CVE-2021-25463 published?

CVE-2021-25463 was published on 2021-09-09 and last updated on 2026-06-17.

CVE-2021-25463

CVE-2021-25463 is a medium-severity vulnerability in Samsung Penup with a CVSS 3.x base score of 4.0. 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 4.0)
CVSS v2: 2.1
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Samsung Penup
Published: 2021-09-09
Last modified: 2026-06-17

Description

Improper access control vulnerability in PENUP prior to version 3.8.00.18 allows arbitrary webpage loading in webview.

Frequently asked questions

What is CVE-2021-25463?: Improper access control vulnerability in PENUP prior to version 3.8.00.18 allows arbitrary webpage loading in webview.
How severe is CVE-2021-25463?: CVE-2021-25463 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-25463 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25463?: CVE-2021-25463 affects Samsung Penup. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-25463?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-25463 published?: CVE-2021-25463 was published on 2021-09-09 and last updated on 2026-06-17.

References

https://security.samsungmobile.com/serviceWeb.smsb?year=2021&month=9

Affected products (1)

cpe:2.3:a:samsung:penup:*:*:*:*:*:*:*:*

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