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CVE-2025-21043 is an out-of-bounds write in Samsung's Quram image codec library, libimagecodec.quram.so, before the September 2025 Security Maintenance Release (SMR) Release 1. The incorrect implementation can write outside an allocated memory buffer while processing attacker-controlled image content, enabling remote attackers to execute arbitrary code. Samsung identified Android 13, 14, 15, and 16 as affected and confirmed that exploitation existed in the wild prior to the fix.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
94 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Samsung Android zero-day out-of-bounds write vulnerability exploited in attacks, enabling arbitrary code execution.
A separate Samsung image-library vulnerability disclosed by Samsung as exploited in the wild; the article notes it is not evidenced as part of the LANDFALL exploitation chain.
Another vulnerability in Samsung's libimagecodec.quram.so library, reported as exploited as a zero-day against Samsung Android devices; technical details are not provided in the content.
A referenced zero-day vulnerability (CVE) associated with an exploit chain similar to that used to deliver commercial-grade Android spyware via malicious image files shared over WhatsApp (the content notes no unknown WhatsApp vulns were found).
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.