CVE-2024-38373 — AI Deep Analysis Summary

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

🚨 **Essence**: Buffer Over-read in DNS response parser. 📉 **Consequences**: Information leakage & potential crash. Critical integrity loss.

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-126** (Buffer Over-read). 🐛 **Flaw**: Reading beyond allocated memory bounds during DNS parsing.

Q: Who is affected? (Versions/Components)

🏢 **Vendor**: FreeRTOS. 📦 **Product**: FreeRTOS-Plus-TCP. ⚠️ **Affected**: Versions **< 4.1.1**.

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

💻 **Hackers**: Read sensitive memory. 📂 **Data**: Internal stack/heap info. 🚫 **Privileges**: Local network access required.

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

🔑 **Auth**: **PR:L** (Low). 🌐 **Access**: Network vector. ⚙️ **Config**: Standard DNS interaction. Moderate barrier.

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

🚫 **Public Exp**: No PoC listed. 🕵️ **Wild Exp**: Unconfirmed. 📉 **Risk**: Theoretical but high impact.

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

🔍 **Check**: Scan for FreeRTOS-Plus-TCP. 📡 **Feature**: Look for DNS response handling. 🛠️ **Tool**: Version fingerprinting.

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

✅ **Fixed**: Yes. 📥 **Patch**: Upgrade to **v4.1.1**. 🔗 **Ref**: GitHub Release V4.1.1.

Q: What if no patch? (Workaround)

🚧 **Workaround**: Filter DNS traffic. 🛑 **Mitigation**: Disable if possible. 📝 **Monitor**: Log anomalies.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH**. 🚨 **Priority**: Patch immediately. 📅 **Date**: Jun 2024. Don't wait!

Updated May 08, 2026 CVSS 9.6 · Critical

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**: Buffer Over-read in DNS response parser. 📉 **Consequences**: Information leakage & potential crash. Critical integrity loss.

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-126** (Buffer Over-read). 🐛 **Flaw**: Reading beyond allocated memory bounds during DNS parsing.

Q3Who is affected? (Versions/Components)

🏢 **Vendor**: FreeRTOS. 📦 **Product**: FreeRTOS-Plus-TCP. ⚠️ **Affected**: Versions **< 4.1.1**.

Q4What can hackers do? (Privileges/Data)

💻 **Hackers**: Read sensitive memory. 📂 **Data**: Internal stack/heap info. 🚫 **Privileges**: Local network access required.

Q5Is exploitation threshold high? (Auth/Config)

🔑 **Auth**: **PR:L** (Low). 🌐 **Access**: Network vector. ⚙️ **Config**: Standard DNS interaction. Moderate barrier.

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

🚫 **Public Exp**: No PoC listed. 🕵️ **Wild Exp**: Unconfirmed. 📉 **Risk**: Theoretical but high impact.

Q7How to self-check? (Features/Scanning)

🔍 **Check**: Scan for FreeRTOS-Plus-TCP. 📡 **Feature**: Look for DNS response handling. 🛠️ **Tool**: Version fingerprinting.

Q8Is it fixed officially? (Patch/Mitigation)

✅ **Fixed**: Yes. 📥 **Patch**: Upgrade to **v4.1.1**. 🔗 **Ref**: GitHub Release V4.1.1.

Q9What if no patch? (Workaround)

🚧 **Workaround**: Filter DNS traffic. 🛑 **Mitigation**: Disable if possible. 📝 **Monitor**: Log anomalies.

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **HIGH**. 🚨 **Priority**: Patch immediately. 📅 **Date**: Jun 2024. Don't wait!

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Vulnerability detail Full AI analysis (login) FreeRTOS CWE-126