🛡️ CVE-2024-4242 — w9-firmware

🟠 CVSS 8.8 — High ✅ No Known Exploit CWE-121 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A vulnerability was found in Tenda W9 1.0.0.7(4456). It has been rated as critical. This issue affects the function formwrlSSIDget of the file /goform/wifiSSIDget. The manipulation of the argument ssidIndex leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-262133 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2024-4242 is classified as CWE-121: Stack-based Buffer Overflow. An oversized write to a stack buffer overwrites saved state such as return addresses, which can redirect execution.

Affected software

CVE-2024-4242 is recorded against 1 package.

  • w9-firmware

Timeline and source

Published on 26 April 2024 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com
vuldb.com
vuldb.com
vuldb.com
github.com
vuldb.com
vuldb.com
vuldb.com

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-121
Public Exploit ✅ No
Source NVD
Published 2024-04-26
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
w9-firmware

References

Permissions Required, Third Party Advisory, VDB Entry https://vuldb.com/?ctiid.262133
Third Party Advisory, VDB Entry https://vuldb.com/?id.262133
Third Party Advisory, VDB Entry https://vuldb.com/?submit.319824
Permissions Required, Third Party Advisory, VDB Entry https://vuldb.com/?ctiid.262133
Third Party Advisory, VDB Entry https://vuldb.com/?id.262133
Third Party Advisory, VDB Entry https://vuldb.com/?submit.319824

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