CVE-2026-5612: Stack-based Buffer Overflow in Belkin F9K1015
CVE-2026-5612 is a stack-based buffer overflow vulnerability in the Belkin F9K1015 router firmware version 1. 00. 10. It affects the formWlEncrypt function in the /goform/formWlEncrypt endpoint, where manipulation of the 'webpage' argument can trigger the overflow. The vulnerability can be exploited remotely without user interaction and has a high severity score of 8. 7. The vendor has not responded to the disclosure, and no official patch or remediation is currently available. Public exploit details have been disclosed, but no known exploits in the wild have been confirmed.
AI Analysis
Technical Summary
This vulnerability in Belkin F9K1015 firmware 1.00.10 involves a stack-based buffer overflow in the formWlEncrypt function accessed via /goform/formWlEncrypt. An attacker can remotely manipulate the 'webpage' argument to overflow the stack, potentially leading to arbitrary code execution or denial of service. The vulnerability has a CVSS 4.0 base score of 8.7, indicating high impact with network attack vector, low attack complexity, no privileges required, and no user interaction needed. The vendor has not provided any response or patch, and the vulnerability is publicly disclosed.
Potential Impact
Successful exploitation could allow a remote attacker to cause a stack-based buffer overflow, potentially resulting in arbitrary code execution or device crash. Given the network attack vector and no required privileges or user interaction, this poses a significant risk to affected devices running the specified firmware version.
Mitigation Recommendations
No official patch or remediation is currently available from the vendor. Users should monitor vendor communications for updates. Until a fix is released, affected devices should be isolated from untrusted networks or replaced with unaffected hardware to mitigate risk. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-5612: Stack-based Buffer Overflow in Belkin F9K1015
Description
CVE-2026-5612 is a stack-based buffer overflow vulnerability in the Belkin F9K1015 router firmware version 1. 00. 10. It affects the formWlEncrypt function in the /goform/formWlEncrypt endpoint, where manipulation of the 'webpage' argument can trigger the overflow. The vulnerability can be exploited remotely without user interaction and has a high severity score of 8. 7. The vendor has not responded to the disclosure, and no official patch or remediation is currently available. Public exploit details have been disclosed, but no known exploits in the wild have been confirmed.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Belkin F9K1015 firmware 1.00.10 involves a stack-based buffer overflow in the formWlEncrypt function accessed via /goform/formWlEncrypt. An attacker can remotely manipulate the 'webpage' argument to overflow the stack, potentially leading to arbitrary code execution or denial of service. The vulnerability has a CVSS 4.0 base score of 8.7, indicating high impact with network attack vector, low attack complexity, no privileges required, and no user interaction needed. The vendor has not provided any response or patch, and the vulnerability is publicly disclosed.
Potential Impact
Successful exploitation could allow a remote attacker to cause a stack-based buffer overflow, potentially resulting in arbitrary code execution or device crash. Given the network attack vector and no required privileges or user interaction, this poses a significant risk to affected devices running the specified firmware version.
Mitigation Recommendations
No official patch or remediation is currently available from the vendor. Users should monitor vendor communications for updates. Until a fix is released, affected devices should be isolated from untrusted networks or replaced with unaffected hardware to mitigate risk. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-05T15:29:51.352Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d348ef0a160ebd927fa91e
Added to database: 4/6/2026, 5:47:27 AM
Last enriched: 4/13/2026, 3:13:57 PM
Last updated: 5/21/2026, 9:20:03 PM
Views: 429
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.