CVE-2025-21042
Samsung Mobile Devices
Published 12 Sept 2025 · updated 30 Sept 2026 · Analyzed
9.8 Critical · CVSS 3.1, NVD
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 10 Nov 2025, with a remediation deadline of 1 Dec 2025 for US federal agencies.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description
Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute arbitrary code.
References
- security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04 · Vendor Advisory
- unit42.paloaltonetworks.com/landfall-is-new-commercial-grade-android-spyware/ · Technical Description, Third Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21042 · US Government Resource