7.5
HIGH
CVE-2024-33820
Totolink Wireless Dual Band Gigabit Router Buffer Overflow Vulnerability
Description

Totolink AC1200 Wireless Dual Band Gigabit Router A3002R_V4 Firmware V4.0.0-B20230531.1404 is vulnerable to Buffer Overflow via the formWlEncrypt function of the boa server. Specifically, they exploit the length of the wlan_ssid field triggers the overflow.

INFO

Published Date :

May 1, 2024, 4:15 p.m.

Last Modified :

June 17, 2025, 4:44 p.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.6
Affected Products

The following products are affected by CVE-2024-33820 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Totolink a3002r_firmware
2 Totolink a3002r
: Total Affected Vendor : 1 | Products : 2
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-33820.

URL Resource
https://gist.github.com/Swind1er/ee095fbfe13f77a5b45b39a5aa82bd17 Exploit Third Party Advisory
https://gist.github.com/Swind1er/ee095fbfe13f77a5b45b39a5aa82bd17 Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-33820 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-33820 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Jun. 17, 2025

    Action Type Old Value New Value
    Added CPE Configuration AND OR *cpe:2.3:o:totolink:a3002r_firmware:4.0.0-b20230531.1404:*:*:*:*:*:*:* OR cpe:2.3:h:totolink:a3002r:v4:*:*:*:*:*:*:*
    Added Reference Type CVE: https://gist.github.com/Swind1er/ee095fbfe13f77a5b45b39a5aa82bd17 Types: Exploit, Third Party Advisory
    Added Reference Type MITRE: https://gist.github.com/Swind1er/ee095fbfe13f77a5b45b39a5aa82bd17 Types: Exploit, Third Party Advisory
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://gist.github.com/Swind1er/ee095fbfe13f77a5b45b39a5aa82bd17
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Jul. 03, 2024

    Action Type Old Value New Value
    Added CWE CISA-ADP CWE-120
    Added CVSS V3.1 CISA-ADP AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Received by [email protected]

    May. 01, 2024

    Action Type Old Value New Value
    Added Description Totolink AC1200 Wireless Dual Band Gigabit Router A3002R_V4 Firmware V4.0.0-B20230531.1404 is vulnerable to Buffer Overflow via the formWlEncrypt function of the boa server. Specifically, they exploit the length of the wlan_ssid field triggers the overflow.
    Added Reference MITRE https://gist.github.com/Swind1er/ee095fbfe13f77a5b45b39a5aa82bd17 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-33820 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-33820 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-92: Forced Integer Overflow Forced Integer Overflow CAPEC-100: Overflow Buffers Overflow Buffers
CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
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Scope
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