Belkin F9K1015 1.00.10 Setting formSetSystemSettings webpage stack-based overflow
Summary
A vulnerability described as critical has been identified in Belkin F9K1015 1.00.10. The affected element is the function formSetSystemSettings of the file /goform/formSetSystemSettings of the component Setting Handler. The manipulation of the argument webpage results in stack-based overflow.
This vulnerability is identified as CVE-2026-5628. The attack can be executed remotely. Additionally, an exploit exists.
The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability was found in Belkin F9K1015 1.00.10. It has been classified as critical. Affected is the function formSetSystemSettings of the file /goform/formSetSystemSettings of the component Setting Handler. The manipulation of the argument webpage with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.
The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-5628. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known.
The exploit is shared for download at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-19180). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.8VulDB Meta Temp Score: 8.0
VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Stack-based overflowCWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
04/05/2026 Advisory disclosed04/05/2026 VulDB entry created
04/06/2026 VulDB entry last update
Sources
Advisory: github.comStatus: Not defined
CVE: CVE-2026-5628 (🔒)
GCVE (CVE): GCVE-0-2026-5628
GCVE (VulDB): GCVE-100-355416
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 04/05/2026 21:09Updated: 04/06/2026 11:02
Changes: 04/05/2026 21:09 (58), 04/06/2026 11:02 (1)
Complete: 🔍
Submitter: LtzHuster
Cache ID: 216::103
Submit
Accepted
- Submit #785555: Belkin F9K1015 1.00.10 Stack-based Buffer Overflow (by LtzHuster)
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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