Belkin F9K1015 1.00.10 formCrossBandSwitch webpage stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.0$0-$5k1.19

Summaryinfo

A vulnerability described as critical has been identified in Belkin F9K1015 1.00.10. This vulnerability affects the function formCrossBandSwitch of the file /goform/formCrossBandSwitch. Executing a manipulation of the argument webpage can lead to stack-based overflow. This vulnerability is tracked as CVE-2026-5611. The attack can be launched remotely. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability classified as critical was found in Belkin F9K1015 1.00.10. This vulnerability affects the function formCrossBandSwitch of the file /goform/formCrossBandSwitch. The manipulation of the argument webpage with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is 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). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability was named CVE-2026-5611. The exploitation appears to be easy. The attack can be initiated remotely. Technical details and also a public exploit are known.

It is possible to download the exploit 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-2026-19152). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: 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: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/05/2026 Advisory disclosed
04/05/2026 +0 days VulDB entry created
04/06/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-5611 (🔒)
GCVE (CVE): GCVE-0-2026-5611
GCVE (VulDB): GCVE-100-355402
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/05/2026 17:35
Updated: 04/06/2026 07:39
Changes: 04/05/2026 17:35 (57), 04/06/2026 07:39 (1)
Complete: 🔍
Submitter: LtzHust
Cache ID: 216:29A:103

Submitinfo

Accepted

  • Submit #785538: Belkin F9K1015 1.00.10 Stack-based Buffer Overflow (by LtzHust)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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