What is CVE-2021-25489?

CVE-2021-25489 is a low-severity vulnerability in Samsung Android, classified under Improper Input Validation. CVSS score: 3.3/10. Published 2021-10-06.

How severe is CVE-2021-25489?

Low severity. CVSS v3 base score is 3.3 out of 10.

Is CVE-2021-25489 known to be exploited?

Yes. CVE-2021-25489 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-06-29), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.

Improper input validation in Samsung Android

CVE-2021-25489

Assuming radio permission is gained, missing input validation in modem interface driver prior to SMR Oct-2021 Release 1 results in format string bug leading to kernel panic.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2021-10-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.005 (43.6th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Samsung Android — versions 8.1, 9.0, 10.0
Samsung Mobile Devices — versions O(8.1), P(9.0), Q(10.0), R(11.0)

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2023-06-29. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2023-07-20.

Required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable

Public proof-of-concept exploits

References

security.samsungmobile.com/securityUpdate.smsb (Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2021-25489?: CVE-2021-25489 is a low-severity vulnerability in Samsung Android, classified under Improper Input Validation. CVSS score: 3.3/10. Published 2021-10-06.
How severe is CVE-2021-25489?: Low severity. CVSS v3 base score is 3.3 out of 10.
Is CVE-2021-25489 known to be exploited?: Yes. CVE-2021-25489 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-06-29), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.