Overview
CVE-2025-23099 represents a severe vulnerability that was discovered in Samsung Mobile Processor Exynos 1480 and 2400. This vulnerability exists due to the absence of a length check which leads to potential out-of-bounds writes. The issue is critical, affecting a vast range of users who have devices with these specific processors, and it can lead to system compromise or data leakage. This cybersecurity threat underscores the importance of effective vulnerability management and regular system patching to maintain the security posture of devices.
Vulnerability Summary
CVE ID: CVE-2025-23099
Severity: Critical (CVSS: 9.1)
Attack Vector: Local
Privileges Required: Low
User Interaction: None
Impact: System compromise and potential data leakage
Affected Products
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Product | Affected Versions
Samsung Mobile Processor Exynos 1480 | All versions up to latest
Samsung Mobile Processor Exynos 2400 | All versions up to latest
How the Exploit Works
The exploit works by exploiting the lack of a length check in the handling of certain data by Samsung’s Exynos 1480 and 2400 processors. An attacker with access to a device that uses these processors can send specially crafted data packets that exceed the expected length. Since the processor doesn’t verify the length of incoming data, this can lead to an out-of-bounds write operation. This condition can be manipulated by an attacker to execute arbitrary code or cause a denial of service condition, potentially compromising the entire system.
Conceptual Example Code
The conceptual example below demonstrates how an attacker might exploit this vulnerability. The attacker sends a packet of data larger than the maximum expected size to a vulnerable device.
#include <stdlib.h>
int main() {
char oversized_packet[2048];
memset(oversized_packet, 'A', sizeof(oversized_packet));
// Send the oversized packet to the device
send_packet_to_device(oversized_packet, sizeof(oversized_packet));
return 0;
}In this example, `send_packet_to_device` represents a function that an attacker would use to send the crafted oversized packet to the vulnerable device. This results in an out-of-bounds write due to the lack of a length check.