{"id":"CVE-2018-9085","aliases":["EUVD-2018-20688","GHSA-r2wg-439c-8pcq"],"status":"published","title":"Missing System x Flash Memory Write Protection Lock Bit","description":"A write protection lock bit was left unset after boot on an older generation of Lenovo and IBM System x servers, potentially allowing an attacker with administrator access to modify the subset of flash memory containing Intel Server Platform Services (SPS) and the system Flash Descriptors.","severity":{"version":"3.0","score":4.9,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00664,"percentile":0.51991,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-276"],"published":"2018-11-16T14:00:00Z","modified":"2026-06-17T02:06:03Z","products":[{"vendor":"ibm","product":"bladecenter_hs23_firmware"},{"vendor":"ibm","product":"bladecenter_hs23e_firmware"},{"vendor":"ibm","product":"flex_system_x220_m4_firmware"},{"vendor":"ibm","product":"flex_system_x222_m4_firmware"},{"vendor":"ibm","product":"flex_system_x240_m4_firmware"},{"vendor":"ibm","product":"flex_system_x280_x6_firmware"},{"vendor":"ibm","product":"flex_system_x440_m4_firmware"},{"vendor":"ibm","product":"flex_system_x480_x6_firmware"},{"vendor":"ibm","product":"flex_system_x880_x6_firmware"},{"vendor":"ibm","product":"idataplex_dx360_m4_firmware"},{"vendor":"ibm","product":"idataplex_dx360_m4_water_cooled_firmware"},{"vendor":"ibm","product":"system x uefi"},{"vendor":"ibm","product":"system_x3100_m4_firmware"},{"vendor":"ibm","product":"system_x3100_m5_firmware"},{"vendor":"ibm","product":"system_x3250_m4_firmware"},{"vendor":"ibm","product":"system_x3250_m5_firmware"},{"vendor":"ibm","product":"system_x3300_m4_firmware"},{"vendor":"ibm","product":"system_x3500_m4_firmware"},{"vendor":"ibm","product":"system_x3530_m4_firmware"},{"vendor":"ibm","product":"system_x3550_m4_firmware"},{"vendor":"ibm","product":"system_x3630_m4_firmware"},{"vendor":"ibm","product":"system_x3650_m4_bd_firmware"},{"vendor":"ibm","product":"system_x3650_m4_firmware"},{"vendor":"ibm","product":"system_x3650_m4_hd_firmware"},{"vendor":"ibm","product":"system_x3750_m4_firmware"},{"vendor":"ibm","product":"system_x3850_x6_firmware"},{"vendor":"ibm","product":"system_x3950_x6_firmware"},{"vendor":"lenovo","product":"flex_system_x240_m4_firmware"},{"vendor":"lenovo","product":"flex_system_x440_m4_firmware"},{"vendor":"lenovo","product":"system x uefi"},{"vendor":"lenovo","product":"system_x3750_m4_firmware"}],"references":[{"url":"https://support.lenovo.com/us/en/solutions/LEN-24477","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-9085"},{"url":"https://github.com/advisories/GHSA-r2wg-439c-8pcq"}],"sources":{"cve":[{"id":"CVE-2018-9085","title":"Missing System x Flash Memory Write Protection Lock Bit","description":"A write protection lock bit was left unset after boot on an older generation of Lenovo and IBM System x servers, potentially allowing an attacker with administrator access to modify the subset of flash memory containing Intel Server Platform Services (SPS) and the system Flash Descriptors.","status":"published","published":"2018-11-16T14:00:00Z","modified":"2024-08-05T07:17:50.596Z","updated_at":"2026-11-02T14:35:02.603326Z"}],"euvd":[{"id":"EUVD-2018-20688","description":"A write protection lock bit was left unset after boot on an older generation of Lenovo and IBM System x servers, potentially allowing an attacker with administrator access to modify the subset of flash memory containing Intel Server Platform Services (SPS) and the system Flash Descriptors.","status":"published","published":"2018-11-16T14:00:00Z","modified":"2024-08-05T07:17:50Z","updated_at":"2026-11-03T02:40:00.889185Z"}],"ghsa":[{"id":"GHSA-r2wg-439c-8pcq","title":"A write protection lock bit was left unset after boot on an older generation of Lenovo and IBM...","description":"A write protection lock bit was left unset after boot on an older generation of Lenovo and IBM System x servers, potentially allowing an attacker with administrator access to modify the subset of flash memory containing Intel Server Platform Services (SPS) and the system Flash Descriptors.","status":"published","published":"2022-05-13T01:53:52Z","modified":"2023-02-02T05:02:21Z","cvss":[{"version":"3.0","score":4.9,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:51:25.546182Z"}],"nvd":[{"id":"CVE-2018-9085","description":"A write protection lock bit was left unset after boot on an older generation of Lenovo and IBM System x servers, potentially allowing an attacker with administrator access to modify the subset of flash memory containing Intel Server Platform Services (SPS) and the system Flash Descriptors.","status":"published","published":"2018-11-16T14:29:00.427Z","modified":"2026-06-17T02:06:03.583Z","cvss":[{"version":"3.0","score":4.9,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:04:48.987926Z"}]}}