Oct 20, 2026 · 16:58 UTC SEARCH
UNRATED KNOWN EXPLOITED
Vulnerability intelligence

CVE-2025-21043

VendorSamsung
ProductMobile Devices
Known exploitedYes
Added to CISA KEVOctober 2, 2025
KEV due dateOctober 23, 2025
Known ransomware useNot identified by CISA

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

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.

CISA KEV status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities Catalog. Known ransomware campaign use: Unknown.

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