How CVE-2025-31202 Works
This vulnerability stems from improper input validation in Apple’s operating systems, leading to a null pointer dereference. When processing network packets, the kernel fails to check for null references, allowing a local attacker to send maliciously crafted packets. This triggers a system crash, causing a denial-of-service (DoS) condition. The flaw affects multiple Apple devices, including iPhones, Macs, Apple TVs, and Vision Pro headsets.
DailyCVE Form:
Platform: Apple OS Stack
Version: iOS <18.4, macOS <15.4
Vulnerability: Null Dereference
Severity: Medium
Date: 05/05/2025
What Undercode Say:
Exploitation:
- Craft malicious network packets targeting the vulnerable service.
- Send payload via local network to trigger null dereference.
3. Observe system crash (kernel panic).
Protection:
1. Update immediately to iOS 18.4, macOS 15.4.
2. Disable unused services to reduce attack surface.
3. Network segmentation to limit local access.
Detection Commands:
Check OS version (macOS): sw_vers -productVersion List active network services: sudo lsof -i -P -n
Exploit PoC (Conceptual):
include <netinet/in.h>
include <stdio.h>
void send_malformed_packet() {
// Crafted payload triggering null deref
struct sockaddr_in target;
target.sin_family = AF_INET;
// ... (malicious payload setup)
}
Mitigation Script (macOS):
!/bin/bash Block suspicious local traffic sudo pfctl -e echo "block in quick from any to any" | sudo pfctl -f -
Analytics:
- CVSS: 5.5 (Medium)
- Attack Vector: Local Network
- Impact: DoS via kernel crash
- Patch Timeline: Fixed in April 2025
References:
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
