CVE-2023-20273 — AI Deep Analysis Summary

Q: Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-78** (OS Command Injection). 🔍 **Flaw**: The Web UI fails to properly sanitize user inputs, allowing malicious commands to be executed with elevated privileges.

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

💀 **Attacker Actions**: 1️⃣ Inject arbitrary commands via Web UI. 2️⃣ Execute with **root privileges**. 3️⃣ Full control over the device (Read/Write/Delete data, disrupt services).

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

⚠️ **Threshold**: **Medium**. 🔑 **Auth Required**: Yes, **High Privileges (PR:H)** needed. 🌐 **Network**: Remote (AV:N). 👀 **User Interaction**: None (UI:N).

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

💣 **Public Exploit**: **YES**. 📂 **PoC Available**: GitHub repo `smokeintheshell/CVE-2023-20273`. 🔥 **Status**: Wild exploitation likely due to accessible PoC script.

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

🔍 **Self-Check**: 1️⃣ Scan for Cisco IOS XE Web UI interfaces. 2️⃣ Verify if the specific vulnerable version is running. 3️⃣ Check for unauthorized command execution attempts in logs.

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

🩹 **Fix**: **YES**. 📜 **Official Advisory**: Cisco Security Advisory `cisco-sa-iosxe-webui-privesc-j22SaA4z`. ✅ **Action**: Update to the patched IOS XE version immediately.

Q: Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. 📅 **Priority**: Patch **IMMEDIATELY**. ⚡ **Reason**: CVSS Score is High (9.8 implied by H/I/H), root access gained, and public PoC exists. Risk of total network compromise is severe.

Updated May 06, 2026 CVSS 7.2 · High

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**: Cisco IOS XE Web UI allows **Command Injection** due to insufficient input validation.…

Read full answer (login)

Q2Root Cause? (CWE/Flaw)

🛡️ **Root Cause**: **CWE-78** (OS Command Injection). <br>🔍 **Flaw**: The Web UI fails to properly sanitize user inputs, allowing malicious commands to be executed with elevated privileges.

Q3Who is affected? (Versions/Components)

🏢 **Affected**: **Cisco IOS XE Software**. <br>📦 **Components**: Used in enterprise wired/wireless access, aggregation, core, and WAN networks.…

Read full answer (login)

Q4What can hackers do? (Privileges/Data)

💀 **Attacker Actions**: <br>1️⃣ Inject arbitrary commands via Web UI. <br>2️⃣ Execute with **root privileges**. <br>3️⃣ Full control over the device (Read/Write/Delete data, disrupt services).

Q5Is exploitation threshold high? (Auth/Config)

⚠️ **Threshold**: **Medium**. <br>🔑 **Auth Required**: Yes, **High Privileges (PR:H)** needed. <br>🌐 **Network**: Remote (AV:N). <br>👀 **User Interaction**: None (UI:N).

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

💣 **Public Exploit**: **YES**. <br>📂 **PoC Available**: GitHub repo `smokeintheshell/CVE-2023-20273`. <br>🔥 **Status**: Wild exploitation likely due to accessible PoC script.

Q7How to self-check? (Features/Scanning)

🔍 **Self-Check**: <br>1️⃣ Scan for Cisco IOS XE Web UI interfaces. <br>2️⃣ Verify if the specific vulnerable version is running. <br>3️⃣ Check for unauthorized command execution attempts in logs.

Q8Is it fixed officially? (Patch/Mitigation)

🩹 **Fix**: **YES**. <br>📜 **Official Advisory**: Cisco Security Advisory `cisco-sa-iosxe-webui-privesc-j22SaA4z`. <br>✅ **Action**: Update to the patched IOS XE version immediately.

Q9What if no patch? (Workaround)

🚧 **No Patch Workaround**: <br>1️⃣ **Disable** the Web UI if not strictly needed. <br>2️⃣ Restrict access to the Web UI via ACLs (Access Control Lists).…

Read full answer (login)

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: **CRITICAL**. <br>📅 **Priority**: Patch **IMMEDIATELY**. <br>⚡ **Reason**: CVSS Score is High (9.8 implied by H/I/H), root access gained, and public PoC exists. Risk of total network compromise is severe.

Continue exploring

Vulnerability detail Full AI analysis (login) Cisco CWE-78