{"id":"CVE-2026-80335","aliases":["A-553139427","ASB-A-553139427","EUVD-2026-116698","GHSA-m96g-cvqq-8rj6","U-3502927"],"status":"published","title":"Out-of-bounds Write in Bootloader","description":"Memory Corruption when processing firmware update data in Download mode due to a missing bounds check.","severity":{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00243,"percentile":0.15647,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-787"],"published":"2026-11-01T00:00:00Z","modified":"2026-11-05T07:01:13Z","fixes":[{"ecosystem":"Android","package":":unknown:","fixed_in":["SoCVersion:2026-11-05"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"SoCVersion:0"},{"fixed":"SoCVersion:2026-11-05"}]}],"versions":["SoCVersion"]}],"products":[{"vendor":"unisoc (shanghai) technologies co., ltd.","product":"bootloader"}],"references":[{"url":"https://www.unisoc.com/en/support/product-security-bulletin/2117823464494759937"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80335"},{"url":"https://github.com/advisories/GHSA-m96g-cvqq-8rj6"},{"url":"https://source.android.com/security/bulletin/2026-11-01","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-80335","title":"Out-of-bounds Write in Bootloader","description":"Memory Corruption when processing firmware update data in Download mode due to a missing bounds check.","status":"published","published":"2026-11-04T03:20:53.265Z","modified":"2026-11-05T07:01:13.075Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-787"],"updated_at":"2026-11-05T09:07:36.520409Z"}],"euvd":[{"id":"EUVD-2026-116698","description":"Memory Corruption when processing firmware update data in Download mode due to a missing bounds check.","status":"published","published":"2026-11-04T03:20:53Z","modified":"2026-11-05T07:01:13Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-05T13:14:14.77537Z"}],"ghsa":[{"id":"GHSA-m96g-cvqq-8rj6","title":"In the bootloader download module, there is a possible out-of-bounds write due to a failure to...","description":"In the bootloader download module, there is a possible out-of-bounds write due to a failure to reset a global offset variable during firmware update sessions. This could lead to heap memory corruption, system crash, or potential arbitrary code execution with no additional execution privileges needed.","status":"published","published":"2026-11-04T06:32:57Z","modified":"2026-11-04T06:33:04Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-04T06:56:58.885599Z"}],"nvd":[{"id":"CVE-2026-80335","description":"Memory Corruption when processing firmware update data in Download mode due to a missing bounds check.","status":"published","published":"2026-11-04T04:17:37.623Z","modified":"2026-11-05T07:17:27.59Z","cvss":[{"version":"3.1","score":7.6,"vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-787"],"updated_at":"2026-11-05T13:18:47.4585Z"}],"osv":[{"id":"ASB-A-553139427","status":"published","published":"2026-11-01T00:00:00Z","modified":"2026-11-10T17:02:23.040266809Z","updated_at":"2026-11-10T17:35:07.907985Z"}]}}