CVE-2025-48025
📋 TL;DR
An improper access control vulnerability in Samsung Exynos processors allows unauthorized access to log files. This affects devices using Exynos 980, 850, 1280, 1330, 1380, 1480, 1580, W920, W930, and W1000 chipsets, potentially exposing sensitive information to local attackers.
💻 Affected Systems
- Samsung Mobile Processor Exynos 980
- Samsung Mobile Processor Exynos 850
- Samsung Mobile Processor Exynos 1280
- Samsung Mobile Processor Exynos 1330
- Samsung Mobile Processor Exynos 1380
- Samsung Mobile Processor Exynos 1480
- Samsung Mobile Processor Exynos 1580
- Samsung Wearable Processor Exynos W920
- Samsung Wearable Processor Exynos W930
- Samsung Wearable Processor Exynos W1000
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker with local access could read sensitive log data, leading to information disclosure such as system details or user activity, which might facilitate further attacks.
Likely Case
Limited information disclosure from log files, possibly revealing non-critical system or application data to a local user or malicious app.
If Mitigated
With proper access controls or patching, the vulnerability is neutralized, preventing any unauthorized log access.
🎯 Exploit Status
Exploitation requires local access to the device, such as through a malicious app or physical interaction; no public exploits are known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Samsung's security updates for specific firmware versions; patch details are provided in the vendor advisory.
Vendor Advisory: https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-48025/
Restart Required: No
Instructions:
1. Check for firmware updates from Samsung or device manufacturer. 2. Apply the latest security patch via device settings or OTA updates. 3. Verify the patch is installed by checking the firmware version.
🔧 Temporary Workarounds
Restrict local access
allLimit physical and app-based access to devices to reduce exploitation risk.
No specific commands; implement device management policies.
🧯 If You Can't Patch
- Monitor devices for unusual log access or suspicious activity.
- Isolate affected devices from sensitive networks to limit potential data exposure.
🔍 How to Verify
Check if Vulnerable:
Check the device's processor model and firmware version; if using an affected Exynos chipset and unpatched, it is vulnerable.Check Version:
On Android devices: Settings > About phone > Software information > Build number or Kernel version.Verify Fix Applied:
Confirm the firmware version matches or exceeds the patched version listed in Samsung's advisory.📡 Detection & Monitoring
Log Indicators:
- Unexpected access attempts to log files, especially from unauthorized users or apps.
Network Indicators:
- No direct network indicators, as this is a local vulnerability.
SIEM Query:
Example: 'event.category:file AND event.action:read AND file.path:*log* AND user.name:unauthorized' (adjust based on SIEM capabilities).