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-# CVE-2025-31200 – iOS AudioConverterService Zero-Click RCE
+# CVE-2025-31200 & CVE-2025-31201 | iMessage Zero-Click RCE Chain
 
-Public disclosure of CVE-2025-31200 – a zero-click remote code execution (RCE) vulnerability in Apple's iOS 18.X, specifically within the `AudioConverterService` component. The vulnerability is triggered by a malicious audio file delivered via iMessage or SMS, requiring no user interaction.
+Public disclosure of two linked vulnerabilities in Apple's iOS 18.x:
+
+- **CVE-2025-31200** — Heap corruption in CoreAudio’s `AudioConverterService`, triggered by a malicious audio file delivered via iMessage. Zero-click, no user interaction required.  
+- **CVE-2025-31201** — Pointer Authentication (PAC) bypass in the RPAC path, enabling reliable kernel exploitation once arbitrary R/W is achieved.
 
 ---
 
-##  Disclosure & Patch Timeline
+## Disclosure & Patch Timeline
 
 - **Initial Report Date:** January 21, 2025  
-- **Reported To:** US-CERT (Tracking ID: VRF#25-01-MPVDT)  
+- **Reported To:** Apple & US-CERT (Tracking ID: VRF#25-01-MPVDT)  
 - **Patched By Apple:** Silently resolved in **iOS 18.4.1**, released **April 16, 2025**  
-- **CVE Assignment:** Identifier **CVE-2025-31200** is used publicly due to lack of MITRE response  
-- **Acknowledgment:** No public credit or acknowledgment provided by Apple or MITRE as of May 18, 2025  
+- **CVE Assignment:** Identifiers **CVE-2025-31200** and **CVE-2025-31201** were assigned publicly due to lack of MITRE response  
 
-Due to the severity of the vulnerability, prolonged silence from relevant stakeholders, and lack of credit or transparency post-patch, this repository is being published to inform the security community and support defensive mitigation.
+Due to the severity, prolonged silence from relevant stakeholders, and absence of acknowledgment post-patch, this repository is published to inform the security community and support defensive mitigation.
 
 ---
 
-##  Affected Systems
+## Affected Systems
+
+- **iOS Versions:** Zero-day until patched in **iOS 18.4.1 (April 16, 2025)**  
+- **Primary Vulnerable Component:** `AudioConverterService` (CoreAudio) via iMessage / SMS delivery  
+- **Chained Component:** RPAC / Pointer Authentication (PAC bypass, CVE-2025-31201)  
+- **Post-Exploitation Impact:** Wireless subsystem manipulation and CryptoTokenKit abuse (no CVE assigned)
 
-- **Product:** iPhone 15 Pro Max (others likely affected)  
-- **iOS Versions:** iOS 18.2.1, iOS 18.3 Beta  
-- **Patched Version:** iOS 18.4.1 (April 16, 2025)  
-- **Vulnerable Component:** `AudioConverterService` via iMessage / SMS processing
 
 ---
 
-##  Contents
 
-- `Remote-Audio-Exploit-iOS-15ProMax-iOS18x.md` – Full technical write-up including:  
-  - Attack chain  
-  - Simulated proof-of-concept (PoC)  
-  - Log timeline and decrypted token leakage  
-  - Privilege escalation and AWDL DoS impact
-
-No weaponized exploit code or malicious payloads are provided. This repository is for documentation and defense only.
-
----
 
 ## 🛡️ Disclaimer