CVE-2021-25370 — AI Deep Analysis Summary

Q: What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: A critical resource management flaw in Samsung SMR (System Patch). 💥 **Consequences**: Improper file descriptor handling leads to **memory corruption** and **kernel panic** (system crash).

Q: Root Cause? (CWE/Flaw)

🛠️ **Root Cause**: Incorrect implementation in handling **file descriptors**. ⚠️ **Flaw**: Resource management error causing memory corruption.

Q: Who is affected? (Versions/Components)

📱 **Affected**: Samsung Mobile Devices. 📦 **Component**: Samsung SMR (System Patch). 🗓️ **Version**: SMR Mar-2021 Release 1.

Q: What can hackers do? (Privileges/Data)

🔓 **Privileges**: High impact (CVSS A:H, C:H, I:H). 📉 **Impact**: Can cause **Denial of Service** (Kernel Panic) and potentially compromise data integrity/confidentiality if exploited fully.

Q: Is exploitation threshold high? (Auth/Config)

🔐 **Threshold**: **High**. 📝 **Requirements**: Requires **Physical Access** (AV:P), **High Complexity** (AC:H), and **High Privileges** (PR:H) to exploit.

Q: Is there a public Exp? (PoC/Wild Exploitation)

🚫 **Public Exp?**: **No**. 📂 **PoCs**: None listed in the provided data. 🌍 **Wild Exp**: No evidence of widespread exploitation.

Q: How to self-check? (Features/Scanning)

🔍 **Check**: Scan for **Samsung SMR Mar-2021 Release 1**. 📋 **Feature**: Look for improper file descriptor handling in system patches.

Q: Is it fixed officially? (Patch/Mitigation)

✅ **Fixed**: **Yes**. 🩹 **Patch**: Samsung Security Update (SMSB). 🔗 **Source**: security.samsungmobile.com.

Q: What if no patch? (Workaround)

🛡️ **Workaround**: **Update immediately**. 🚫 **No Patch**: If unpatched, limit physical access and monitor for system instability/panics.

Q: Is it urgent? (Priority Suggestion)

⚡ **Urgency**: **High Priority** for patching. 📊 **Reason**: Critical CVSS score (H:H:H). Even with high exploitation barriers, the impact (Kernel Panic) is severe.

Updated May 06, 2026 CVSS 6.1 · Medium

This is a summary of the AI-generated 10-question deep analysis. The full version (longer answers, follow-up Q&A, related CVEs) requires login. Read the full analysis →

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: A critical resource management flaw in Samsung SMR (System Patch). <br>💥 **Consequences**: Improper file descriptor handling leads to **memory corruption** and **kernel panic** (system crash).

Q2Root Cause? (CWE/Flaw)

🛠️ **Root Cause**: Incorrect implementation in handling **file descriptors**. <br>⚠️ **Flaw**: Resource management error causing memory corruption.

Q3Who is affected? (Versions/Components)

📱 **Affected**: Samsung Mobile Devices. <br>📦 **Component**: Samsung SMR (System Patch). <br>🗓️ **Version**: SMR Mar-2021 Release 1.

Q4What can hackers do? (Privileges/Data)

🔓 **Privileges**: High impact (CVSS A:H, C:H, I:H). <br>📉 **Impact**: Can cause **Denial of Service** (Kernel Panic) and potentially compromise data integrity/confidentiality if exploited fully.

Q5Is exploitation threshold high? (Auth/Config)

🔐 **Threshold**: **High**. <br>📝 **Requirements**: Requires **Physical Access** (AV:P), **High Complexity** (AC:H), and **High Privileges** (PR:H) to exploit.

Q6Is there a public Exp? (PoC/Wild Exploitation)

🚫 **Public Exp?**: **No**. <br>📂 **PoCs**: None listed in the provided data. <br>🌍 **Wild Exp**: No evidence of widespread exploitation.

Q7How to self-check? (Features/Scanning)

🔍 **Check**: Scan for **Samsung SMR Mar-2021 Release 1**. <br>📋 **Feature**: Look for improper file descriptor handling in system patches.

Q8Is it fixed officially? (Patch/Mitigation)

✅ **Fixed**: **Yes**. <br>🩹 **Patch**: Samsung Security Update (SMSB). <br>🔗 **Source**: security.samsungmobile.com.

Q9What if no patch? (Workaround)

🛡️ **Workaround**: **Update immediately**. <br>🚫 **No Patch**: If unpatched, limit physical access and monitor for system instability/panics.

Q10Is it urgent? (Priority Suggestion)

⚡ **Urgency**: **High Priority** for patching. <br>📊 **Reason**: Critical CVSS score (H:H:H). Even with high exploitation barriers, the impact (Kernel Panic) is severe.

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