Unit 42 researchers have uncovered a previously unknown Android spyware family, which we have named LANDFALL. To deliver the spyware, attackers exploited a zero-day vulnerability (CVE-2025-21042) in Samsung’s Android image processing library.
The specific flaw LANDFALL exploited, CVE-2025-21042, is not an isolated case but rather part of a broader pattern of similar issues found on multiple mobile platforms. This vulnerability was actively exploited in the wild before Samsung patched it in April 2025, following reports of in-the-wild attacks. However, the exploit itself — and the commercial-grade spyware used with it — have not yet been publicly reported and analyzed.
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Source: Palo Alto Unit 42
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