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CVE-2025-21042 is an out-of-bounds write vulnerability in Samsung's Quram image processing library before SMR Apr-2025 Release 1. Processing a specially crafted Digital Negative (DNG) image can corrupt memory and allow remote arbitrary code execution in the Samsung image processing service. Affected devices include Samsung Galaxy models running Android 13, 14, and 15. The vulnerability was exploited as a zero-day to deploy LANDFALL spyware before Samsung released its April 2025 fix. Observed delivery involved malicious images apparently received through WhatsApp, inserted into Android MediaStore, and subsequently parsed by the Samsung image processing service. Zero-click exploitation is unconfirmed; the documented WhatsApp delivery path was assessed as requiring one click.
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No valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.
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129 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Samsung TIFF/DNG parsing vulnerability exploited via weaponized image files delivering embedded ELF payloads targeting Android devices; attributed in the report to a private sector offensive actor cluster (also referenced as LANDFALL by other research).
A Samsung image parsing vulnerability (TIFF/DNG) exploited via weaponized image files carrying embedded ELF payloads targeting Android devices; activity assessed as PSOA-linked and also reported as LANDFALL.
A remote code execution vulnerability in Samsung's Quram image library, exploited via malicious DNG files to deliver LANDFALL spyware.
A zero-day vulnerability in Samsung Galaxy Android devices' Quram image parsing library, exploited for remote code execution via malicious DNG image files.
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Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.