{"id":"CVE-2023-3488","aliases":["EUVD-2023-44147","GHSA-p3wg-g3gr-3fxj"],"status":"published","title":"Uninitialized variable in Gecko Bootloader can leak secure stack","description":"Uninitialized buffer in GBL parser in Silicon Labs GSDK v4.3.0 and earlier allows attacker to leak data from Secure stack via malformed GBL file.","severity":{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00257,"percentile":0.17506,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-908"],"published":"2023-07-28T15:36:29Z","modified":"2026-10-28T02:30:53Z","products":[{"vendor":"silabs","product":"gecko_software_development_kit"},{"vendor":"silabs.com","product":"gecko bootloader"}],"references":[{"url":"https://github.com/SiliconLabs/gecko_sdk/releases","tags":["patch","x_transferred","Release Notes","fix"]},{"url":"https://community.silabs.com/sfc/servlet.shepherd/document/download/0698Y00000Wi3HwQAJ?operationContext=S1","tags":["vendor-advisory","x_transferred","Permissions Required","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-3488","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-p3wg-g3gr-3fxj"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/3xxx/CVE-2023-3488.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-3488","title":"Uninitialized variable in Gecko Bootloader can leak secure stack","description":"Uninitialized buffer in GBL parser in Silicon Labs GSDK v4.3.0 and earlier allows attacker to leak data from Secure stack via malformed GBL file.\n\n","status":"published","published":"2023-07-28T15:36:29.124Z","modified":"2024-10-11T14:07:41.204Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T14:35:24.360381Z"}],"euvd":[{"id":"EUVD-2023-44147","description":"Uninitialized buffer in GBL parser in Silicon Labs GSDK v4.3.0 and earlier allows attacker to leak data from Secure stack via malformed GBL file.\n\n","status":"published","published":"2023-07-28T15:36:29Z","modified":"2024-10-11T14:07:41Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-03T00:27:39.67018Z"}],"ghsa":[{"id":"GHSA-p3wg-g3gr-3fxj","title":"Uninitialized buffer in GBL parser in Silicon Labs GSDK v4.3.0 and earlier allows attacker to...","description":"Uninitialized buffer in GBL parser in Silicon Labs GSDK v4.3.0 and earlier allows attacker to leak data from Secure stack via malformed GBL file.\n\n","status":"published","published":"2023-07-28T18:30:26Z","modified":"2024-04-04T06:25:04Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T14:56:42.088122Z"}],"nvd":[{"id":"CVE-2023-3488","description":"Uninitialized buffer in GBL parser in Silicon Labs GSDK v4.3.0 and earlier allows attacker to leak data from Secure stack via malformed GBL file.\n\n","status":"published","published":"2023-07-28T16:15:12.997Z","modified":"2026-06-17T06:14:12.103Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T14:08:18.687088Z"}],"osv":[{"id":"CVE-2023-3488","title":"Uninitialized variable in Gecko Bootloader can leak secure stack","description":"Uninitialized buffer in GBL parser in Silicon Labs GSDK v4.3.0 and earlier allows attacker to leak data from Secure stack via malformed GBL file.\n\n","status":"published","published":"2023-07-28T15:36:29.124Z","modified":"2026-10-28T02:30:53.218446807Z","cvss":[{"version":"3.1","score":3.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-908"],"updated_at":"2026-11-02T15:44:32.116263Z"}]}}