{"id":"CVE-2026-4436","aliases":["EUVD-2026-21066","GHSA-frgm-v97w-x7w6"],"status":"published","title":"GPL Odorizers GPL750 Missing Authentication for Critical Function","description":"A low-privileged remote attacker can send Modbus packets to manipulate \nregister values that are inputs to the odorant injection logic such that\n too much or too little odorant is injected into a gas line.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00456,"percentile":0.39894,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306"],"published":"2026-04-09T20:04:26Z","modified":"2026-10-26T21:10:00Z","products":[{"vendor":"gpl odorizers","product":"gpl odorizers gpl750 (xl7 prime)"},{"vendor":"gpl odorizers","product":"gpl odorizers gpl750 (xl7)"},{"vendor":"gpl odorizers","product":"gpl750 (xl4 prime)"},{"vendor":"gpl odorizers","product":"gpl750 (xl4)"}],"references":[{"url":"https://lincenergysystems-my.sharepoint.com/:f:/p/h_baer/IgDYaHIhXpyLQJvnKPd6b80TAUgV7Lp8qmVYBFUb0lmr7ak?e=JLeADm"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-099-02"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-099-02.json"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4436"},{"url":"https://github.com/advisories/GHSA-frgm-v97w-x7w6"}],"sources":{"cve":[{"id":"CVE-2026-4436","title":"GPL Odorizers GPL750 Missing Authentication for Critical Function","description":"A low-privileged remote attacker can send Modbus packets to manipulate \nregister values that are inputs to the odorant injection logic such that\n too much or too little odorant is injected into a gas line.","status":"published","published":"2026-04-09T20:04:26.208Z","modified":"2026-04-14T14:04:53.417Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:19:58.944663Z"}],"euvd":[{"id":"EUVD-2026-21066","description":"A low-privileged remote attacker can send Modbus packets to manipulate \nregister values that are inputs to the odorant injection logic such that\n too much or too little odorant is injected into a gas line.","status":"published","published":"2026-04-09T20:04:26Z","modified":"2026-04-14T14:04:53Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T19:24:26.535553Z"}],"ghsa":[{"id":"GHSA-frgm-v97w-x7w6","title":"A low-privileged remote attacker can send Modbus packets to manipulate \nregister values that are...","description":"A low-privileged remote attacker can send Modbus packets to manipulate \nregister values that are inputs to the odorant injection logic such that\n too much or too little odorant is injected into a gas line.","status":"published","published":"2026-04-09T21:31:30Z","modified":"2026-04-09T21:31:36Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T15:07:23.752851Z"}],"nvd":[{"id":"CVE-2026-4436","description":"A low-privileged remote attacker can send Modbus packets to manipulate \nregister values that are inputs to the odorant injection logic such that\n too much or too little odorant is injected into a gas line.","status":"published","published":"2026-04-09T20:16:27.903Z","modified":"2026-10-26T21:10:00.17Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:12:13.902911Z"}]}}