CVE-2025-58479 Overview
CVE-2025-58479 is an out-of-bounds read vulnerability in libimagecodec.quram.so, an image parsing library used by Samsung Android devices. The flaw exists in versions prior to the SMR Dec-2025 Release 1 security maintenance patch. Remote attackers can exploit the vulnerability to access memory outside the bounds of an allocated buffer, potentially leaking sensitive process data. The vulnerability is classified under [CWE-125: Out-of-bounds Read]. Affected versions span Samsung's Android 13, 14, 15, and 16 builds. The issue is addressed in Samsung's December 2025 Security Maintenance Release.
Critical Impact
A remote attacker can trigger the flaw by delivering a crafted image to a vulnerable Samsung Android device, enabling out-of-bounds memory access and disclosure of process memory contents.
Affected Products
- Samsung Android 13.0 (all SMR releases prior to Dec-2025 R1)
- Samsung Android 14.0 (all SMR releases prior to Dec-2025 R1)
- Samsung Android 15.0 and 16.0 (releases prior to Dec-2025 R1)
Discovery Timeline
- 2025-12-02 - CVE-2025-58479 published to NVD
- 2025-12-05 - Last updated in NVD database
Technical Details for CVE-2025-58479
Vulnerability Analysis
The vulnerability resides in libimagecodec.quram.so, a proprietary native library shipped on Samsung Android devices that handles image decoding for multiple formats. An out-of-bounds read occurs when the decoder reads memory beyond the bounds of an allocated buffer while parsing a malformed image. The issue is tracked under [CWE-125].
Because the library is invoked by media handlers, messaging clients, and gallery applications, the attack surface is broad. The flaw impacts confidentiality but does not corrupt memory or affect availability of the device, according to the published CVSS metrics.
Root Cause
The root cause is missing or insufficient bounds validation when parsing structured fields inside an image file. The decoder calculates an offset or length from attacker-controlled header data and dereferences memory without confirming the value falls within the allocated buffer. This permits the library to read adjacent heap memory belonging to the media processing context.
Attack Vector
Exploitation requires no authentication, no user interaction, and no privileges. An attacker delivers a crafted image through any channel that triggers automatic media parsing — for example, MMS, RCS, instant messaging previews, email attachments, or web content rendered by a vulnerable component. When the image is processed by libimagecodec.quram.so, the parser reads memory outside its allocated buffer. The leaked bytes can include pointers, tokens, or other process state that supports follow-on attacks.
No public proof-of-concept exploit is associated with this CVE at the time of publication. Refer to the Samsung Mobile Security Update for vendor-supplied technical details.
Detection Methods for CVE-2025-58479
Indicators of Compromise
- Unexpected crashes or stack traces referencing libimagecodec.quram.so in Android tombstone logs.
- Repeated delivery of malformed image files (unusual headers, truncated streams, or non-standard chunk sizes) to MMS, RCS, or email clients.
- Anomalous outbound network traffic from media handler processes following inbound image messages.
Detection Strategies
- Inspect mobile device management (MDM) telemetry for Samsung devices reporting build fingerprints older than SMR Dec-2025 Release 1.
- Hunt for messages carrying image attachments with malformed metadata using mail and messaging gateway logs.
- Correlate media-process crash events with preceding inbound message activity to identify potential exploitation attempts.
Monitoring Recommendations
- Enable mobile threat defense telemetry on managed Samsung devices to capture native library crashes and anomalous media handler behavior.
- Forward MDM and mobile threat defense events into a centralized analytics platform to baseline normal image-handling activity.
- Track Samsung security patch level (ro.build.version.security_patch) across the fleet and alert on devices that remain below the December 2025 patch level.
How to Mitigate CVE-2025-58479
Immediate Actions Required
- Apply the Samsung SMR Dec-2025 Release 1 update to all affected Samsung Android 13, 14, 15, and 16 devices through the Settings update channel or enterprise MDM.
- Inventory Samsung devices in the environment and prioritize patching of devices that handle sensitive corporate data or are exposed to untrusted messaging.
- Restrict automatic media downloads in messaging applications until patches are installed.
Patch Information
Samsung addressed the issue in the December 2025 Security Maintenance Release (SMR Dec-2025 Release 1). Devices must be running this build or later to be considered remediated. Patch availability varies by model and carrier; verify deployment in the Samsung Mobile Security Update bulletin.
Workarounds
- Disable auto-retrieval of MMS and RCS messages in the default messaging application to prevent automatic parsing of inbound images.
- Configure messaging and email clients to block or quarantine attachments from untrusted senders.
- Enforce MDM policies that prevent installation of risky third-party applications that may forward malicious media to vulnerable handlers.
# Verify Samsung security patch level on a managed device via ADB
adb shell getprop ro.build.version.security_patch
# Expected value for remediated devices: 2025-12-01 or later
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
