CVE-2024-57471

Critical

Published: 14 January 2025

Published

14 January 2025

Modified

27 May 2025

KEV Added

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Patch

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CVSS Score 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0033 56.2th percentile

Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-57471 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in H3C N12 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 43.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190). What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match

prevent

Directly remediates the buffer overflow vulnerability by identifying, reporting, and applying vendor patches as specified in the H3C advisory.

SI-10 Information Input Validation good match

prevent

Enforces length verification and validity checks on POST requests to the /bin/webs endpoint, directly addressing the lack of input validation causing the buffer overflow.

SI-16 Memory Protection partial match

prevent

Implements memory safeguards like address space layout randomization or stack canaries to mitigate exploitation of the buffer overflow for remote code execution.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

Buffer overflow in remotely accessible web interface (/bin/webs) directly enables unauthenticated remote exploitation of a public-facing application for RCE or DoS.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

H3C N12 V100R005 contains a buffer overflow vulnerability due to the lack of length verification in the 2.4G wireless network processing function. Attackers who successfully exploit this vulnerability can cause the remote target device to crash or execute arbitrary commands…

by sending a POST request to /bin/webs.

Deeper analysisAI

CVE-2024-57471, published on 2025-01-14, is a buffer overflow vulnerability (CWE-120) in H3C N12 V100R005 due to insufficient length verification in the 2.4G wireless network processing function. The flaw resides in the web interface component, specifically accessible via the /bin/webs endpoint.

The vulnerability carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), making it exploitable over the network with low complexity, no privileges, no user interaction, and unchanged scope. Remote attackers can trigger it by sending a specially crafted POST request to /bin/webs on a vulnerable device, potentially causing a denial-of-service crash or remote code execution with arbitrary command execution.

Mitigation guidance is available in the vendor advisory at http://h3c.com and further technical details, including a proof-of-concept, in the GitHub gist at https://gist.github.com/XiaoCurry/88a43c9a68694941221eb7592da39d4c.