CVE-2025-21042

Out-of-Bounds Write in Samsung Mobile Devices. CISA confirmed attackers exploit it and added it to its Known Exploited Vulnerabilities catalog on 10 November 2025.

Product
Samsung Mobile Devices
Added to CISA's catalog
Federal fix-by date
Ransomware
No known use in ransomware campaigns

CISA’s description.

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

Every flaw CISA confirmed exploited in the last 30 days is on the exploit watch. This is not security advice. Check the vendor’s advisory before acting. From CISA’s catalog of 3 November 2026.