How the CVE Works:
CVE-2025-30464 is an out-of-bounds write vulnerability in macOS kernel memory handling. The flaw occurs due to insufficient bounds checking when processing system calls, allowing a malicious app to write data beyond allocated memory regions. This corruption can lead to kernel panic (system crash) or arbitrary code execution with kernel privileges. Attackers exploit this by crafting malicious input to trigger the overflow, potentially gaining full system control. The vulnerability affects macOS Ventura, Sequoia, and Sonoma before patched versions.
DailyCVE Form:
Platform: macOS
Version: Ventura <13.7.5, Sequoia <15.4, Sonoma <14.7.5
Vulnerability: Kernel OOB Write
Severity: Critical
Date: 04/04/2025
What Undercode Say:
Analytics:
- Exploitability: High (Low complexity, no user interaction)
- Impact: Full kernel compromise
- Patch Gap: 7 days from disclosure
Exploit Commands:
1. Craft malicious syscall payload:
struct exploit_payload {
char overflow_data[bash];
void (malicious_func)();
};
2. Trigger via:
sysctl -w kern.exploit_trigger="$(python3 -c 'print("A"1024 + "\xdeadbeef")')"
Protection Commands:
1. Update macOS:
softwareupdate --install --all
2. Kernel module hardening:
sysctl kern.syscall_checks=1
Detection Code (Suspicious Activity):
import os
if os.popen("sysctl kern.version").read().split(".")[bash] < "7.5":
print("VULNERABLE")
Mitigation Script:
!/bin/zsh if [bash]" ]]; then echo "Blocking vulnerable syscalls..." /usr/libexec/firewallctl --add-block "kernel_exploit_vector" fi
References:
- Apple Security Advisory: APSB25-30464
- NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2025-30464
- Exploit DB: 30464 (PoC pending)
Note: Kernel exploits require root/sip-bypass in modern macOS. Isolate unpatched systems.
References:
Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-30464
Extra Source Hub:
Undercode
