Remote code execution via out-of-bounds image write
Published Sep 12, 2025 · Updated Feb 26, 2026
Out-of-bounds write in Samsung Mobile Devices on Android 13 through 16 allows remote attackers to execute arbitrary code via image processing. The proprietary libimagecodec.quram.so library performs an out-of-bounds write because of an incorrect implementation, but Samsung has not disclosed the faulty function or missing check. Exploitation requires user interaction and allows attacker-controlled code to run on the affected device.
Summary
What happened
Out-of-bounds write in Samsung Mobile Devices on Android 13 through 16 allows remote attackers to execute arbitrary code via image processing. The proprietary libimagecodec.quram.so library performs an out-of-bounds write because of an incorrect implementation, but Samsung has not disclosed the faulty function or missing check. Exploitation requires user interaction and allows attacker-controlled code to run on the affected device.
The record
- CVE
- CVE-2025-21043
- Published
- Sep 12, 2025
- Updated
- Feb 26, 2026
- Vendor
- Samsung Electronics Co., Ltd.
- Product
- Samsung Mobile Devices
- Classifications
- CWE-787, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 12, 2025CVE publishedPublication date reported by the CVE source.
- Feb 26, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Reported exploitation
- CISA Known Exploited Vulnerabilities listingknown exploited catalog
- Samsung in-the-wild exploit notificationreported exploitation
Technologies
Your stack
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Your stack
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