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CVE-2026-5613: Stack-based Buffer Overflow in Belkin F9K1015

0
High
VulnerabilityCVE-2026-5613cvecve-2026-5613
Published: Mon Apr 06 2026 (04/06/2026, 02:30:13 UTC)
Source: CVE Database V5
Vendor/Project: Belkin
Product: F9K1015

Description

CVE-2026-5613 is a stack-based buffer overflow vulnerability in the Belkin F9K1015 router firmware version 1. 00. 10. The flaw exists in the formReboot function within the /goform/formReboot endpoint, where improper handling of the 'webpage' argument allows remote attackers to trigger a buffer overflow. Exploitation can be initiated remotely without user interaction and requires low attack complexity. The vendor has not responded to disclosure requests, and no official patch or remediation guidance is currently available. The vulnerability has a high severity score of 8. 7 (CVSS 4. 0) and an exploit is publicly available, though no known exploitation in the wild has been reported to date.

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 04/13/2026, 15:15:30 UTC

Technical Analysis

This vulnerability affects Belkin F9K1015 firmware version 1.00.10 and involves a stack-based buffer overflow in the formReboot function of the /goform/formReboot file. By manipulating the 'webpage' argument, an attacker can overflow the stack buffer remotely, potentially leading to arbitrary code execution or denial of service. The vulnerability requires no user interaction and has a low attack complexity. The vendor was contacted but did not provide any response or patch information. No official remediation or patch is currently documented.

Potential Impact

Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code or cause a denial of service on the affected device. Given the high CVSS score (8.7) and the nature of a stack-based buffer overflow, the impact is significant for device confidentiality, integrity, and availability. However, there are no confirmed reports of exploitation in the wild at this time.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded and no patch is available, users should consider mitigating exposure by restricting remote access to the affected device's management interface and monitoring for suspicious activity. Avoid exposing the device management interface to untrusted networks until an official fix is released.

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Technical Details

Data Version
5.2
Assigner Short Name
VulDB
Date Reserved
2026-04-05T15:29:54.593Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 69d348ef0a160ebd927fa927

Added to database: 4/6/2026, 5:47:27 AM

Last enriched: 4/13/2026, 3:15:30 PM

Last updated: 5/22/2026, 9:37:18 AM

Views: 121

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