Trending
CVE-2026-4566

CVE detail

CVE-2026-4566

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.

CVSS 7.4 · HighBuzz score 28.91 public exploit repository references

Buzz score

Why this CVE is surfacing

Buzz score total 28.9

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 17.9 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 4.5

Mention score

17.9

5 evidence mentions in the snapshot

Diversity score

6.5

2 sources across 1 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

4.5

1 repos · best confidence 0.90

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

5 source links · newest first

https://vuldb.com/?submit.775132vuldb.com
No excerpt available.
Exploitvuldb.comMar 23, 2026, 3:16 AM
https://vuldb.com/?id.352403vuldb.com
No excerpt available.
Exploitvuldb.comMar 23, 2026, 3:16 AM
https://vuldb.com/?ctiid.352403vuldb.com
No excerpt available.
Exploitvuldb.comMar 23, 2026, 3:16 AM
https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_151/README.md#proof-of-concept-pocgithub.com
No excerpt available.
Exploitgithub.comMar 23, 2026, 3:16 AM
https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_151/README.mdgithub.com
No excerpt available.
Exploitgithub.comMar 23, 2026, 3:16 AM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

1 repository references · best confidence 0.90 · max 0 stars

Litengzheng/vul_dbHigh confidence
githubNVD Exploit reference0 starsDiscovered Jul 15, 2026, 12:21 PM
NVD labels the source link as Exploit; this is not independent verification of the repository's code.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence

CVE-2026-5608
A vulnerability was detected in Belkin F9K1122 1.00.33. Affected is the function formWlanSetup of the file /goform/formWlanSetup. The manipulation of the argument webpage results…
CVSS 7.4 · High
Public PoC observed4 mentions
CVE-2026-5044
A security vulnerability has been detected in Belkin F9K1122 1.00.33. This affects the function formSetSystemSettings of the file /goform/formSetSystemSettings of the component Se…
CVSS 7.4 · High
Public PoC observed4 mentions
CVE-2026-5043
A weakness has been identified in Belkin F9K1122 1.00.33. The impacted element is the function formSetPassword of the file /goform/formSetPassword of the component Parameter Handl…
CVSS 7.4 · High
Public PoC observed4 mentions
CVE-2026-5042
A security flaw has been discovered in Belkin F9K1122 1.00.33. The affected element is the function formCrossBandSwitch of the file /goform/formCrossBandSwitch of the component Pa…
CVSS 7.4 · High
Public PoC observed4 mentions
CVE-2025-7094
A vulnerability was found in Belkin F9K1122 1.00.33. It has been rated as critical. Affected by this issue is the function formBSSetSitesurvey of the file /goform/formBSSetSitesur…
CVSS 7.4 · High
CVE-2025-7093
A vulnerability was found in Belkin F9K1122 1.00.33. It has been declared as critical. Affected by this vulnerability is the function formSetLanguage of the file /goform/formSetLa…
CVSS 7.4 · High

External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2026-4566.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:h:belkin:f9k1122Search this product on Shodan
cpe:2.3:o:belkin:f9k1122_firmwareSearch this product on Shodan

Exact CVE query

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vuln:CVE-2026-4566Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Analyzed

Published

Mar 23, 2026

Modified

Jun 17, 2026

Official record

Authoritative NVD record

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CWE IDs

Vendor classifications

How this vector reads

CVSS 4.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Attack Requirements (AT): None. No prerequisite deployment or execution condition is required.
Privileges Required (PR): Low. The attacker needs basic user-level privileges.
User Interaction (UI): None. Exploitation does not require a targeted user to act.
Vulnerable System Confidentiality (VC): High. There is a total or serious impact to this security property.
Vulnerable System Integrity (VI): High. There is a total or serious impact to this security property.
Vulnerable System Availability (VA): High. There is a total or serious impact to this security property.
Subsequent System Confidentiality (SC): None. There is no direct impact to this security property.
Subsequent System Integrity (SI): None. There is no direct impact to this security property.
Subsequent System Availability (SA): None. There is no direct impact to this security property.

Optional CVSS v4 metrics remain in the raw vector; only base metrics are expanded here.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses