Remote Code Execution in Samsung libimagecodec.quram.so
CVE-2025-21043 is a Samsung mobile devices vulnerability in the closed-source image parsing library libimagecodec.quram.so, developed by Quramsoft. Samsung describes the issue as an out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1. The flaw affects Samsung devices running Android 13, 14, 15, and 16, and successful exploitation allows remote attackers to execute arbitrary code. Public reporting indicates the vulnerable component is used to parse and decode image content, and the bug was fixed by correcting an incorrect implementation in the library. The content also indicates the vulnerability was exploited in the wild as a zero-day before Samsung released the September 2025 patch.
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Impact, mitigation & remediation
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Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
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Remediation
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Exploits
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No public exploit code observed for this vulnerability.
Affected products & vendors
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
91 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).
The version that knows your environment.
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.