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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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8d5ea8191f67fea67525167df26e302acc4cb5c1eee18d071617d476b86a8496
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":9,"vectorString":"AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":8.7,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-121","description":"Stack-based Buffer Overflow","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:o:belkin:f9k1122_firmware:*:*:*:*:*:*:*:*"],"product":"F9K1122","vendor":"Belkin","versions":[{"status":"affected","version":"1.00.33"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":9,"vectorString":"AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":8.7,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-121","description":"Stack-based Buffer Overflow","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-119","description":"Memory Corruption","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/problemTypes/1/descriptions/0

Source references

5 source assertions
{"tags":["related"],"url":"https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_151/README.md"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/references/3
{"tags":["exploit"],"url":"https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_151/README.md#proof-of-concept-poc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/references/4
{"name":"VDB-352403 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"],"url":"https://vuldb.com/?ctiid.352403"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/references/1
{"name":"VDB-352403 | Belkin F9K1122 formWISP5G stack-based overflow","tags":["vdb-entry","technical-description"],"url":"https://vuldb.com/?id.352403"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/references/0
{"name":"Submit #775132 | Belkin F9K1122 1.00.33 Stack-based Buffer Overflow","tags":["third-party-advisory"],"url":"https://vuldb.com/?submit.775132"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d117731ee33e719e81a435b7088c9efc82707154523c6f68851d6535dc5678e · sha256:86a8f5d1ee5b1981… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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