{"id":"CVE-2026-18368","aliases":["EUVD-2026-57787","GHSA-26g8-9jvg-gfw6"],"status":"published","title":"Heap buffer overflow in Modbusgwd","description":"In Teltonika Networks RUTOS devices, a vulnerability exists in modbusgwd\n due to improper handling of Modbus TCP request data. A remote, \nunauthenticated attacker with access to the affected service could \ntrigger a heap-based buffer overflow, resulting in a denial of service.","severity":{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00251,"percentile":0.16575,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-08-13T10:52:35Z","modified":"2026-10-23T19:10:00Z","products":[{"vendor":"teltonika networks","product":"rutos"}],"references":[{"url":"https://www.teltonika-networks.com/support/security-centre?report=CVE-2026-18368"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18368"},{"url":"https://github.com/advisories/GHSA-26g8-9jvg-gfw6"}],"sources":{"cve":[{"id":"CVE-2026-18368","title":"Heap buffer overflow in Modbusgwd","description":"In Teltonika Networks RUTOS devices, a vulnerability exists in modbusgwd\n due to improper handling of Modbus TCP request data. A remote, \nunauthenticated attacker with access to the affected service could \ntrigger a heap-based buffer overflow, resulting in a denial of service.","status":"published","published":"2026-08-13T10:52:35.564Z","modified":"2026-08-13T14:43:24.994Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:20:12.939084Z"}],"euvd":[{"id":"EUVD-2026-57787","description":"In Teltonika Networks RUTOS devices, a vulnerability exists in modbusgwd\n due to improper handling of Modbus TCP request data. A remote, \nunauthenticated attacker with access to the affected service could \ntrigger a heap-based buffer overflow, resulting in a denial of service.","status":"published","published":"2026-08-13T10:52:35Z","modified":"2026-08-13T14:43:24Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:01:56.415282Z"}],"ghsa":[{"id":"GHSA-26g8-9jvg-gfw6","title":"In Teltonika Networks RUTOS devices, a vulnerability exists in modbusgwd\n due to improper...","description":"In Teltonika Networks RUTOS devices, a vulnerability exists in modbusgwd\n due to improper handling of Modbus TCP request data. A remote, \nunauthenticated attacker with access to the affected service could \ntrigger a heap-based buffer overflow, resulting in a denial of service.","status":"published","published":"2026-08-13T12:31:09Z","modified":"2026-08-13T12:31:10Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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","level":"medium"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:10:24.70819Z"}],"nvd":[{"id":"CVE-2026-18368","description":"In Teltonika Networks RUTOS devices, a vulnerability exists in modbusgwd\n due to improper handling of Modbus TCP request data. A remote, \nunauthenticated attacker with access to the affected service could \ntrigger a heap-based buffer overflow, resulting in a denial of service.","status":"published","published":"2026-08-13T11:17:38.497Z","modified":"2026-10-23T19:10:00.167Z","cvss":[{"version":"4.0","score":6,"vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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","level":"medium","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T14:12:37.217486Z"}]}}