ACTIVELY EXPLOITED

CVE-2025-21042: Samsung Mobile Devices Out-of-Bounds Write Vulnerability

Facts
VendorSamsung
ProductMobile Devices
Actively exploitedYes
Added to CISA KEV10 Nov 2025
CISA federal deadline1 Dec 2025
Weakness (CWE)CWE-787

Required action (CISA's text)

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 (NVD)

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

SOURCES

Other Samsung flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.