{"id":"CVE-2026-4226","state":"PUBLISHED","title":"LB-LINK BL-WR9000 get_virtual_cfg sub_44E8D0 stack-based overflow","description":"A weakness has been identified in LB-LINK BL-WR9000 2.4.9. The affected element is the function sub_44E8D0 of the file /goform/get_virtual_cfg. Executing a manipulation can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.","publishedAt":"2026-03-16T07:32:10.845Z","updatedAt":"2026-03-16T17:06:42.899Z","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":["LB-LINK BL-WR9000"],"affected":[{"vendor":"LB-LINK","product":"BL-WR9000","versions":[{"version":"2.4.9","status":"affected"}]}],"references":["https://vuldb.com/?id.351149","https://vuldb.com/?ctiid.351149","https://vuldb.com/?submit.771207","https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_VirtualRules%20stack%20overflow_EN.md"],"weaknesses":["CWE-121","CWE-119"],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/4xxx/CVE-2026-4226.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-4226","state":"PUBLISHED","datePublished":"2026-03-16T07:32:10.845Z","dateUpdated":"2026-03-16T17:06:42.899Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-03-15T18:41:08.804Z"},"containers":{"cna":{"title":"LB-LINK BL-WR9000 get_virtual_cfg sub_44E8D0 stack-based overflow","descriptions":[{"lang":"en","value":"A weakness has been identified in LB-LINK BL-WR9000 2.4.9. The affected element is the function sub_44E8D0 of the file /goform/get_virtual_cfg. Executing a manipulation can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."}],"affected":[{"vendor":"LB-LINK","product":"BL-WR9000","versions":[{"version":"2.4.9","status":"affected"}]}],"references":[{"url":"https://vuldb.com/?id.351149","name":"VDB-351149 | LB-LINK BL-WR9000 get_virtual_cfg sub_44E8D0 stack-based overflow","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/?ctiid.351149","name":"VDB-351149 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/?submit.771207","name":"Submit #771207 | LB-LINK BL-WR9000 V2.4.9 over","tags":["third-party-advisory"]},{"url":"https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_VirtualRules%20stack%20overflow_EN.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":"2026-03-16T07:32:10.845Z"},"timeline":[{"time":"2026-03-15T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-03-15T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-03-15T19:46:24.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"jfkk (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB","type":"coordinator"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-16T17:02:09.943914Z","id":"CVE-2026-4226","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":"2026-03-16T17:06:42.899Z"}}]}}}