Overview
Samsung mobile devices contain an improper input validation vulnerability within the modem interface driver that results in a format string bug leading to kernel panic.
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10; https://nvd.nist.gov/vuln/detail/CVE-2021-25489
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2021-25489 |
| Vendor / Product | Samsung — Mobile Devices |
| NVD Published | 2021-10-06 |
| NVD Last Modified | 2025-10-30 |
| CVSS 3.1 Score | 3.3 |
| CVSS 3.1 Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| Severity | LOW |
| CWE | CWE-20 |
| CISA KEV Added | 2023-06-29 |
| CISA KEV Deadline | 2023-07-20 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Required Action
CISA BOD 22-01 Deadline: 2023-07-20.
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable
Timeline
| Date | Event |
|---|---|
| 2023-06-29 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2023-07-20 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2021-25489 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |