CVE-2021-25489Samsung Mobile Devices Improper Input Validation Vulnerability

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.

3.3 LOWEPSS 0.53%⚡ Known Exploited (CISA KEV)NVD: Published

Last updated: 2025-10-21 23:25 UTC

OverviewCVSS details

3.3LOWCVSS 3.1

Score source: Samsung Mobile (CNA)
NVD status: Published
Published: Oct 6, 2021
Assigner: Samsung Mobile

Affected

Samsung Mobile Devices (Samsung Mobile)

Versions: O(8.1), P(9.0), Q(10.0), R(11.0) before SMR Oct-2021 Release 1
Fixed in: SMR Oct-2021 Release 1

Exploitation

Public exploit: None listed
CISA KEV: Listed · Jun 29, 2023
KEV due date: Jul 20, 2023
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact partial

EPSS · FIRST, scored Nov 7

0.53%chance of exploitation in 30 days

Higher than 45.09% of CVEs

CVSS 3.1 · Samsung Mobile (CNA)

3.3Low

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: None
Availability impact: Low

NVD status: Published

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
3.3	LOW	3.1Samsung Mobile (CNA)	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Details

CVE ID: CVE-2021-25489
Status: Published
Assigner (CNA): Samsung Mobile
Published: Oct 6, 2021
Last modified: 2025-10-21 23:25 UTC
Weaknesses: CWE-20 · Improper Input Validation

Sources

NVD (unavailable at last refresh)
CVE.org
CISA KEV
FIRST EPSS

Refreshed hourly from the sources above. Last fetched 2026-11-08 14:13 UTC.