{"id":"CVE-2026-5042","state":"PUBLISHED","title":"Belkin F9K1122 Parameter formCrossBandSwitch stack-based overflow","description":"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 Parameter Handler. The manipulation of the argument webpage results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.","publishedAt":"2026-03-29T10:30:10.400Z","updatedAt":"2026-03-30T14:52:35.882Z","severity":{"score":8.7,"label":"High","version":"4.0","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","source":"VulDB"},"assigner":"VulDB","products":["Belkin F9K1122"],"affected":[{"vendor":"Belkin","product":"F9K1122","versions":[{"version":"1.00.33","status":"affected"}],"cpes":["cpe:2.3:o:belkin:f9k1122_firmware:*:*:*:*:*:*:*:*"],"modules":["Parameter Handler"]}],"references":["https://vuldb.com/vuln/353965","https://vuldb.com/vuln/353965/cti","https://vuldb.com/submit/779123","https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_153/README.md"],"weaknesses":["CWE-121","CWE-119"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/5xxx/CVE-2026-5042.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-5042","state":"PUBLISHED","datePublished":"2026-03-29T10:30:10.400Z","dateUpdated":"2026-03-30T14:52:35.882Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-03-27T16:35:43.170Z"},"containers":{"cna":{"title":"Belkin F9K1122 Parameter formCrossBandSwitch stack-based overflow","descriptions":[{"lang":"en","value":"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 Parameter Handler. The manipulation of the argument webpage results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."}],"affected":[{"vendor":"Belkin","product":"F9K1122","versions":[{"version":"1.00.33","status":"affected"}],"cpes":["cpe:2.3:o:belkin:f9k1122_firmware:*:*:*:*:*:*:*:*"],"modules":["Parameter Handler"]}],"references":[{"url":"https://vuldb.com/vuln/353965","name":"VDB-353965 | Belkin F9K1122 Parameter formCrossBandSwitch stack-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/353965/cti","name":"VDB-353965 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/submit/779123","name":"Submit #779123 | Belkin F9K1122 1.00.33 Stack-based Buffer Overflow","tags":["third-party-advisory"]},{"url":"https://github.com/Litengzheng/vul_db/blob/main/Belkin/vul_153/README.md","tags":["exploit"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":8.7,"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","baseSeverity":"HIGH"}},{"cvssV3_1":{"version":"3.1","baseScore":8.8,"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","baseSeverity":"HIGH"}},{"cvssV3_0":{"version":"3.0","baseScore":8.8,"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","baseSeverity":"HIGH"}},{"cvssV2_0":{"version":"2.0","baseScore":9,"vectorString":"AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","type":"CWE","lang":"en","description":"Stack-based Buffer Overflow"}]},{"descriptions":[{"cweId":"CWE-119","type":"CWE","lang":"en","description":"Memory Corruption"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-03-29T10:30:10.400Z"},"timeline":[{"time":"2026-03-27T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-03-27T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-03-27T17:41:56.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"LtzHuster2 (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB","type":"coordinator"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-30T12:59:37.583296Z","id":"CVE-2026-5042","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-30T14:52:35.882Z"}}]}}}