CVE-2025-52516
📋 TL;DR
A kernel address dereference vulnerability in the issimian device driver for Samsung Exynos processors allows attackers to cause denial of service. This affects Samsung mobile devices and wearables using Exynos 1330, 1380, 1480, 2400, 1580, or 2500 processors. The vulnerability requires local access to the device.
💻 Affected Systems
- Samsung Galaxy smartphones
- Samsung Galaxy wearables
- Other devices using affected Exynos processors
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device crash requiring physical restart, potentially causing data loss or service disruption.
Likely Case
Temporary denial of service affecting camera functionality and potentially other system services until device restart.
If Mitigated
Minimal impact with proper access controls preventing unauthorized local access to vulnerable drivers.
🎯 Exploit Status
Requires local access and ability to interact with kernel driver. No public exploit code available at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in public advisory - check Samsung security updates
Vendor Advisory: https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-52516/
Restart Required: Yes
Instructions:
1. Check for Samsung security updates in device settings. 2. Install latest available security patch. 3. Restart device after update completes.
🔧 Temporary Workarounds
Disable camera permissions
androidRestrict camera access to trusted applications only
Limit local access
allPrevent unauthorized users or applications from accessing device
🧯 If You Can't Patch
- Implement strict application vetting and installation controls
- Monitor for abnormal device crashes or camera service failures
🔍 How to Verify
Check if Vulnerable:
Check device processor model in Settings > About phone > Hardware information. If using Exynos 1330, 1380, 1480, 2400, 1580, or 2500, device may be vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Check Android security patch level in Settings > About phone > Software information. Ensure latest Samsung security updates are installed.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Camera service crashes
- System watchdog resets
Network Indicators:
- None - local vulnerability only
SIEM Query:
Device logs showing kernel panic or camera driver failures on Samsung devices with Exynos processors