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ID

VAR-202603-2415


CVE

CVE-2026-4566


TITLE

Belkin International of F9K1122  Multiple vulnerabilities in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2026-013849

DESCRIPTION

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 remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way. Belkin F9K1122 version 1.00.33 A vulnerability was discovered in . All information handled by the software may be rewritten. Furthermore, the software may stop working completely. Furthermore, attacks that exploit this vulnerability will not affect other software

Trust: 1.62

sources: NVD: CVE-2026-4566 // JVNDB: JVNDB-2026-013849

AFFECTED PRODUCTS

vendor:belkinmodel:f9k1122scope:eqversion:1.00.33

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vendor:belkinmodel:f9k1122scope: - version: -

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vendor:belkinmodel:f9k1122scope:eqversion: -

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vendor:belkinmodel:f9k1122scope:eqversion:f9k1122 firmware 1.00.33

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sources: JVNDB: JVNDB-2026-013849 // NVD: CVE-2026-4566

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com: CVE-2026-4566
value: HIGH

Trust: 1.0

OTHER: JVNDB-2026-013849
value: HIGH

Trust: 0.8

cna@vuldb.com: CVE-2026-4566
severity: HIGH
baseScore: 9.0
vectorString: AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 8.0
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.0

OTHER: JVNDB-2026-013849
severity: HIGH
baseScore: 9.0
vectorString: AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector: NETWORK
accessComplexity: LOW
authentication: SINGLE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: NONE
impactScore: NONE
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.8

cna@vuldb.com: CVE-2026-4566
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

OTHER: JVNDB-2026-013849
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: JVNDB: JVNDB-2026-013849 // NVD: CVE-2026-4566

PROBLEMTYPE DATA

problemtype:CWE-119

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problemtype:CWE-121

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problemtype:Buffer error (CWE-119) [ others ]

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problemtype: Stack-based buffer overflow (CWE-121) [ others ]

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sources: JVNDB: JVNDB-2026-013849 // NVD: CVE-2026-4566

PATCH

title:httpsurl:https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_151/README.md

Trust: 0.8

sources: JVNDB: JVNDB-2026-013849

EXTERNAL IDS

db:NVDid:CVE-2026-4566

Trust: 2.6

db:VULDBid:352403

Trust: 1.0

db:JVNDBid:JVNDB-2026-013849

Trust: 0.8

sources: JVNDB: JVNDB-2026-013849 // NVD: CVE-2026-4566

REFERENCES

url:https://github.com/litengzheng/vul_db/blob/main/belkin/vul_151/readme.md#proof-of-concept-poc

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url:https://vuldb.com/?ctiid.352403

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url:https://github.com/litengzheng/vul_db/blob/main/belkin/vul_151/readme.md

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url:https://vuldb.com/?submit.775132

Trust: 1.0

url:https://vuldb.com/?id.352403

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2026-4566

Trust: 0.8

sources: JVNDB: JVNDB-2026-013849 // NVD: CVE-2026-4566

SOURCES

db:JVNDBid:JVNDB-2026-013849
db:NVDid:CVE-2026-4566

LAST UPDATE DATE

2026-06-19T22:41:08.652000+00:00


SOURCES UPDATE DATE

db:JVNDBid:JVNDB-2026-013849date:2026-05-01T01:45:00
db:NVDid:CVE-2026-4566date:2026-04-29T22:10:13.920

SOURCES RELEASE DATE

db:JVNDBid:JVNDB-2026-013849date:2026-05-01T00:00:00
db:NVDid:CVE-2026-4566date:2026-03-23T03:16:00.083