Is CVE-2024-21778 actively exploited?

CVE-2024-21778 has no public evidence of in-the-wild exploitation as of 2025-11-04.

What is the CVSS score for CVE-2024-21778?

CVE-2024-21778 has a CVSS score of 7.2 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2024-21778?

Patch guidance is available from realtek security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2024-21778.

Fix CVE-2024-21778 - HIGH | CVEDatabase.com

Q: Which products are affected by CVE-2024-21778?

2 products: realtek rtl819x jungle software development kit, level1 wbr-6013 firmware.

Description

A heap-based buffer overflow vulnerability exists in the configuration file mib_init_value_array functionality of Realtek rtl819x Jungle SDK v3.4.11. A specially crafted .dat file can lead to arbitrary code execution. An attacker can upload a malicious file to trigger this vulnerability.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: high
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-122 CWE-787 · Out-of-bounds Write

Metadata

Primary Vendor: REALTEK
Published: 7/8/2024
Last Modified: 11/4/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2024-21778

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary