CVE-2025-21042

Samsung Mobile Devices — Samsung Mobile Devices Out-of-Bounds Write Vulnerability
⚠️ CVSS 3.1  8.8 / 10 — HIGH 🔴 CISA Known Exploited Vulnerability

Overview

Samsung mobile devices contain an out-of-bounds write vulnerability in libimagecodec.quram.so. This vulnerability could allow remote attackers to execute arbitrary code.

https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21042

Key Details

PropertyValue
CVE ID CVE-2025-21042
Vendor / Product Samsung — Mobile Devices
NVD Published2025-09-12
NVD Last Modified2025-11-12
CVSS 3.1 Score8.8
CVSS 3.1 VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SeverityHIGH
CWE CWE-787
CISA KEV Added2025-11-10
CISA KEV Deadline2025-12-01
Known Ransomware Use No

CVSS 3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Required Action

CISA BOD 22-01 Deadline: 2025-12-01. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Timeline

DateEvent
2025-11-10Added to CISA Known Exploited Vulnerabilities catalog
2025-12-01CISA BOD 22-01 remediation deadline

References

ResourceType
NVD — CVE-2025-21042 Vulnerability Database
CISA KEV Catalog Entry US Government