9.0
HIGH CVSS 2.0
CVE-2026-4167
Belkin F9K1122 formReboot stack-based overflow
Description

A vulnerability was determined in Belkin F9K1122 1.00.33. This affects the function formReboot of the file /goform/formReboot. This manipulation of the argument webpage causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

INFO

Published Date :

March 16, 2026, 2:19 p.m.

Last Modified :

March 16, 2026, 2:53 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-4167 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 Belkin f9k1122_firmware
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
CVSS 4.0 HIGH [email protected]
Solution
Address stack-based buffer overflow in formReboot by updating the firmware.
  • Update the device firmware to the latest available version.
  • Avoid using affected functionality if update is unavailable.
Public PoC/Exploit Available at Github

CVE-2026-4167 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-4167 is associated with the following CWEs:

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).

command injection

Updated: 2 weeks, 3 days ago
3 stars 0 fork 0 watcher
Born at : Jan. 12, 2026, 2:31 a.m. This repo has been linked 34 different CVEs too.

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

The following list is the news that have been mention CVE-2026-4167 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-4167 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.

  • New CVE Received by [email protected]

    Mar. 16, 2026

    Action Type Old Value New Value
    Added Description A vulnerability was determined in Belkin F9K1122 1.00.33. This affects the function formReboot of the file /goform/formReboot. This manipulation of the argument webpage causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V2 (AV:N/AC:L/Au:S/C:C/I:C/A:C)
    Added CWE CWE-119
    Added CWE CWE-121
    Added Reference https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_152/README.md
    Added Reference https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_152/README.md#proof-of-concept-poc
    Added Reference https://vuldb.com/?ctiid.351074
    Added Reference https://vuldb.com/?id.351074
    Added Reference https://vuldb.com/?submit.769727
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.