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Home / Vulnerability Intelligence / CVE-2026-4566

CVE-2026-4566 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: March 23, 2026

Belkin F9K1122 - Buffer Overflow

Published: March 23, 2026Updated: March 23, 2026Remote Exploitable

Overview

Belkin F9K1122 1.00.33 contains a stack-based buffer overflow caused by manipulation of the "webpage" argument in /goform/formWISP5G, letting remote attackers execute arbitrary code, exploit requires no special privileges.

Severity & Score

Severity: High
CVSS Score: 8.8
EPSS Score: 0.0%(Probability of exploitation in next 30 days)

Impact

Remote attackers can execute arbitrary code, potentially leading to full system compromise.

Mitigation

Update to the latest version provided by the vendor.

References

Social Media Activity(4 posts)

TheHackerWire
TheHackerWire
@thehackerwire
Mar 23, 2026

šŸŸ  CVE-2026-4566 - High (8.8) A flaw has been found in Belkin F9K1122 1.00.33. The affected element is the function formWISP5G of the file /goform/formWISP5G. Executing a manipulation of the argument webpage can lead to stack-based buffer overflow. The attack can be launched r... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-4566/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post
TheHackerWire
TheHackerWire
@thehackerwire
Mar 23, 2026

šŸŸ  CVE-2026-4566 - High (8.8) A flaw has been found in Belkin F9K1122 1.00.33. The affected element is the function formWISP5G of the file /goform/formWISP5G. Executing a manipulation of the argument webpage can lead to stack-based buffer overflow. The attack can be launched r... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-4566/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post
TheHackerWire
TheHackerWire
@thehackerwire
Mar 23, 2026

šŸŸ  CVE-2026-4566 - High (8.8) A flaw has been found in Belkin F9K1122 1.00.33. The affected element is the function formWISP5G of the file /goform/formWISP5G. Executing a manipulation of the argument webpage can lead to stack-based buffer overflow. The attack can be launched r... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-4566/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post
TheHackerWire
TheHackerWire
@thehackerwire
Mar 23, 2026

šŸŸ  CVE-2026-4566 - High (8.8) A flaw has been found in Belkin F9K1122 1.00.33. The affected element is the function formWISP5G of the file /goform/formWISP5G. Executing a manipulation of the argument webpage can lead to stack-based buffer overflow. The attack can be launched r... šŸ”— https://www.thehackerwire.com/vulnerability/CVE-2026-4566/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

View original post

Related Resources

Details

CVE ID
CVE-2026-4566
Severity
High
CVSS Score
8.8
Type
buffer_overflow
Status
new
EPSS
0.0%
Social Posts
4

CWE

  • CWE-119

CVSS Metrics

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

EPSS Score

0.0%Probability of exploitation in the next 30 days