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Exploited Added to CISA's list November 10, 2025

Samsung Mobile Devices: Out-of-Bounds Write Vulnerability

What to do: Install the latest Android security update in Settings, then restart the phone.

Affects
Samsung Mobile Devices
Identifier
CVE-2025-21042
What it is
Samsung mobile devices contain an out-of-bounds write vulnerability in libimagecodec.quram.so. This vulnerability could allow remote attackers to execute arbitrary code.
Official guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Details
National Vulnerability Database entry

"Exploited" means CISA has evidence attackers are using this flaw. Being on the list does not mean your device was attacked; it means the update matters.