{"id":"CVE-2021-36324","title":"Dell BIOS contains an improper input validation vulnerability","summary":"Dell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-20","CWE-20"],"vendor":"dell","product":"alienware_13_r3_firmware","affected":["alienware_13_r3_firmware < 1.13.0","alienware_15_r3_firmware < 1.13.0","alienware_15_r4_firmware < 1.14.0","alienware_17_r4_firmware < 1.13.0","alienware_17_r5_firmware < 1.14.0","alienware_area_51m_r1_firmware < 1.15.1","alienware_area_51m_r2_firmware < 1.10.0","alienware_aurora_r11_firmware < 1.0.9","alienware_aurora_r12_firmware < 1.1.7","alienware_aurora_r7_firmware < 1.0.25","alienware_aurora_r8_firmware < 1.0.17","alienware_aurora_r9_firmware < 1.0.14","alienware_aurora_ryzen_edition_firmware < 2.2.4","alienware_m15_r1_firmware < 2.9.0","alienware_m15_r2_firmware < 1.9.0","alienware_m15_r3_firmware < 1.11.0","alienware_m17_r1_firmware < 2.9.0","alienware_m17_r2_firmware < 1.9.0","alienware_m17_r3_firmware < 1.11.0","alienware_x15_r1_firmware < 1.4.0","alienware_x17_r1_firmware < 1.4.0","chengming_3977_firmware < 1.13.0","chengming_3980_firmware < 2.19.0","chengming_3988_firmware < 1.7.0","chengming_3990_firmware < 1.5.1","chengming_3991_firmware < 1.5.1","g3_3579_firmware < 1.17.0","g3_3590_firmware < 1.14.0","g3_3779_firmware < 1.17.0","g5_5000_firmware < 1.3.0","g5_5090_firmware < 1.9.0","g5_5587_firmware < 1.17.0","g5_5590_firmware < 1.16.0","g7_7587_firmware < 1.17.0","g7_7588_firmware <= 1.17.0","g7_7590_firmware <= 1.16.0","g7_7790_firmware <= 1.16.0","embedded_box_pc_5000_firmware < 1.11.0","inspiron_13_5378_firmware < 1.34.0","inspiron_13_5379_firmware < 1.17.0","inspiron_14_3467_firmware < 2.16.0","inspiron_14_5468_firmware < 1.15.0","inspiron_15_3567_firmware < 2.16.0","inspiron_15_5566_firmware < 1.15.0","inspiron_15_5578_firmware < 1.34.0","inspiron_15_5579_firmware < 1.17.0","inspiron_15_5582_firmware < 2.11.0","inspiron_15_7570_firmware < 1.20.0","inspiron_15_7572_firmware < 1.8.0","inspiron_15_7573_firmware < 1.20.0","inspiron_15_7577_firmware < 1.14.0","inspiron_17_7773_firmware < 1.17.0","inspiron_3268_firmware < 1.17.1","inspiron_3277_firmware < 1.16.0","inspiron_3280_firmware < 1.12.0","inspiron_3470_firmware < 2.19.0","inspiron_3471_firmware < 1.7.0","inspiron_3476_firmware < 1.14.0","inspiron_3477_firmware < 1.16.0","inspiron_3480_firmware < 1.15.0","inspiron_3480_firmware < 1.12.0","inspiron_3481_firmware < 1.14.0","inspiron_3576_firmware < 1.14.0","inspiron_3580_firmware < 1.15.0","inspiron_3581_firmware < 1.14.0","inspiron_3668_firmware < 1.17.1","inspiron_3670_firmware < 2.19.0","inspiron_3671_firmware < 1.7.0","inspiron_3780_firmware < 1.15.0","inspiron_3781_firmware < 1.14.0","inspiron_3880_firmware < 1.5.1","inspiron_3881_firmware < 1.5.1","inspiron_5370_firmware < 1.19.0","inspiron_5400_firmware < 1.5.2","inspiron_5401_firmware < 1.5.2","inspiron_5477_firmware < 1.2.15","inspiron_5480_firmware < 2.11.0","inspiron_5481_firmware < 2.11.0","inspiron_5482_firmware < 2.11.0","inspiron_5490_firmware < 1.10.0","inspiron_5570_firmware < 1.6.0","inspiron_5580_firmware < 2.11.0","inspiron_5680_firmware < 2.7.0","inspiron_5770_firmware < 1.6.0","inspiron_7370_firmware < 1.20.0","inspiron_7373_firmware < 1.20.0","inspiron_7380_firmware < 1.14.0","inspiron_7386_firmware < 1.11.0","inspiron_7467_firmware < 1.15.0","inspiron_7472_firmware < 1.8.0","inspiron_7567_firmware < 1.15.0","inspiron_7580_firmware < 1.14.0","inspiron_7586_firmware < 1.11.0","inspiron_7590_firmware < 1.11.0","inspiron_7591_firmware < 1.11.0","inspiron_7700_firmware < 1.5.2","inspiron_7777_firmware < 1.2.15","inspiron_7786_firmware < 1.11.0","inspiron_7790_firmware < 1.10.0","inspiron_5491_firmware < 1.10.0"],"patched":["alienware_13_r3_firmware 1.13.0","alienware_15_r3_firmware 1.13.0","alienware_15_r4_firmware 1.14.0","alienware_17_r4_firmware 1.13.0","alienware_17_r5_firmware 1.14.0","alienware_area_51m_r1_firmware 1.15.1","alienware_area_51m_r2_firmware 1.10.0","alienware_aurora_r11_firmware 1.0.9","alienware_aurora_r12_firmware 1.1.7","alienware_aurora_r7_firmware 1.0.25","alienware_aurora_r8_firmware 1.0.17","alienware_aurora_r9_firmware 1.0.14","alienware_aurora_ryzen_edition_firmware 2.2.4","alienware_m15_r1_firmware 2.9.0","alienware_m15_r2_firmware 1.9.0","alienware_m15_r3_firmware 1.11.0","alienware_m17_r1_firmware 2.9.0","alienware_m17_r2_firmware 1.9.0","alienware_m17_r3_firmware 1.11.0","alienware_x15_r1_firmware 1.4.0","alienware_x17_r1_firmware 1.4.0","chengming_3977_firmware 1.13.0","chengming_3980_firmware 2.19.0","chengming_3988_firmware 1.7.0","chengming_3990_firmware 1.5.1","chengming_3991_firmware 1.5.1","g3_3579_firmware 1.17.0","g3_3590_firmware 1.14.0","g3_3779_firmware 1.17.0","g5_5000_firmware 1.3.0","g5_5090_firmware 1.9.0","g5_5587_firmware 1.17.0","g5_5590_firmware 1.16.0","g7_7587_firmware 1.17.0","embedded_box_pc_5000_firmware 1.11.0","inspiron_13_5378_firmware 1.34.0","inspiron_13_5379_firmware 1.17.0","inspiron_14_3467_firmware 2.16.0","inspiron_14_5468_firmware 1.15.0","inspiron_15_3567_firmware 2.16.0","inspiron_15_5566_firmware 1.15.0","inspiron_15_5578_firmware 1.34.0","inspiron_15_5579_firmware 1.17.0","inspiron_15_5582_firmware 2.11.0","inspiron_15_7570_firmware 1.20.0","inspiron_15_7572_firmware 1.8.0","inspiron_15_7573_firmware 1.20.0","inspiron_15_7577_firmware 1.14.0","inspiron_17_7773_firmware 1.17.0","inspiron_3268_firmware 1.17.1","inspiron_3277_firmware 1.16.0","inspiron_3280_firmware 1.12.0","inspiron_3470_firmware 2.19.0","inspiron_3471_firmware 1.7.0","inspiron_3476_firmware 1.14.0","inspiron_3477_firmware 1.16.0","inspiron_3480_firmware 1.12.0","inspiron_3481_firmware 1.14.0","inspiron_3576_firmware 1.14.0","inspiron_3580_firmware 1.15.0","inspiron_3581_firmware 1.14.0","inspiron_3668_firmware 1.17.1","inspiron_3670_firmware 2.19.0","inspiron_3671_firmware 1.7.0","inspiron_3780_firmware 1.15.0","inspiron_3781_firmware 1.14.0","inspiron_3880_firmware 1.5.1","inspiron_3881_firmware 1.5.1","inspiron_5370_firmware 1.19.0","inspiron_5400_firmware 1.5.2","inspiron_5401_firmware 1.5.2","inspiron_5477_firmware 1.2.15","inspiron_5480_firmware 2.11.0","inspiron_5481_firmware 2.11.0","inspiron_5482_firmware 2.11.0","inspiron_5490_firmware 1.10.0","inspiron_5570_firmware 1.6.0","inspiron_5580_firmware 2.11.0","inspiron_5680_firmware 2.7.0","inspiron_5770_firmware 1.6.0","inspiron_7370_firmware 1.20.0","inspiron_7373_firmware 1.20.0","inspiron_7380_firmware 1.14.0","inspiron_7386_firmware 1.11.0","inspiron_7467_firmware 1.15.0","inspiron_7472_firmware 1.8.0","inspiron_7567_firmware 1.15.0","inspiron_7580_firmware 1.14.0","inspiron_7586_firmware 1.11.0","inspiron_7590_firmware 1.11.0","inspiron_7591_firmware 1.11.0","inspiron_7700_firmware 1.5.2","inspiron_7777_firmware 1.2.15","inspiron_7786_firmware 1.11.0","inspiron_7790_firmware 1.10.0","inspiron_5491_firmware 1.10.0"],"published":"2021-11-12","updated":"2026-10-08","sourceUpdated":"2026-10-08T21:17:37.830","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-36324","references":[{"url":"https://www.dell.com/support/kbdoc/en-us/000192967","label":"security_alert@emc.com"},{"url":"https://www.dell.com/support/kbdoc/en-us/000192967","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00241,"epssPercentile":0.13933,"ingestedAt":"2026-10-08T22:11:53.742Z","slug":"CVE-2021-36324","body":"## Overview\n\nDell BIOS contains an improper input validation vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.\n\n## Affected\n\n- `alienware_13_r3_firmware < 1.13.0`\n- `alienware_15_r3_firmware < 1.13.0`\n- `alienware_15_r4_firmware < 1.14.0`\n- `alienware_17_r4_firmware < 1.13.0`\n- `alienware_17_r5_firmware < 1.14.0`\n- `alienware_area_51m_r1_firmware < 1.15.1`\n- `alienware_area_51m_r2_firmware < 1.10.0`\n- `alienware_aurora_r11_firmware < 1.0.9`\n- `alienware_aurora_r12_firmware < 1.1.7`\n- `alienware_aurora_r7_firmware < 1.0.25`\n- `alienware_aurora_r8_firmware < 1.0.17`\n- `alienware_aurora_r9_firmware < 1.0.14`\n- `alienware_aurora_ryzen_edition_firmware < 2.2.4`\n- `alienware_m15_r1_firmware < 2.9.0`\n- `alienware_m15_r2_firmware < 1.9.0`\n- `alienware_m15_r3_firmware < 1.11.0`\n- `alienware_m17_r1_firmware < 2.9.0`\n- `alienware_m17_r2_firmware < 1.9.0`\n- `alienware_m17_r3_firmware < 1.11.0`\n- `alienware_x15_r1_firmware < 1.4.0`\n- `alienware_x17_r1_firmware < 1.4.0`\n- `chengming_3977_firmware < 1.13.0`\n- `chengming_3980_firmware < 2.19.0`\n- `chengming_3988_firmware < 1.7.0`\n- `chengming_3990_firmware < 1.5.1`\n- `chengming_3991_firmware < 1.5.1`\n- `g3_3579_firmware < 1.17.0`\n- `g3_3590_firmware < 1.14.0`\n- `g3_3779_firmware < 1.17.0`\n- `g5_5000_firmware < 1.3.0`\n- `g5_5090_firmware < 1.9.0`\n- `g5_5587_firmware < 1.17.0`\n- `g5_5590_firmware < 1.16.0`\n- `g7_7587_firmware < 1.17.0`\n- `g7_7588_firmware <= 1.17.0`\n- `g7_7590_firmware <= 1.16.0`\n- `g7_7790_firmware <= 1.16.0`\n- `embedded_box_pc_5000_firmware < 1.11.0`\n- `inspiron_13_5378_firmware < 1.34.0`\n- `inspiron_13_5379_firmware < 1.17.0`\n- `inspiron_14_3467_firmware < 2.16.0`\n- `inspiron_14_5468_firmware < 1.15.0`\n- `inspiron_15_3567_firmware < 2.16.0`\n- `inspiron_15_5566_firmware < 1.15.0`\n- `inspiron_15_5578_firmware < 1.34.0`\n- `inspiron_15_5579_firmware < 1.17.0`\n- `inspiron_15_5582_firmware < 2.11.0`\n- `inspiron_15_7570_firmware < 1.20.0`\n- `inspiron_15_7572_firmware < 1.8.0`\n- `inspiron_15_7573_firmware < 1.20.0`\n- `inspiron_15_7577_firmware < 1.14.0`\n- `inspiron_17_7773_firmware < 1.17.0`\n- `inspiron_3268_firmware < 1.17.1`\n- `inspiron_3277_firmware < 1.16.0`\n- `inspiron_3280_firmware < 1.12.0`\n- `inspiron_3470_firmware < 2.19.0`\n- `inspiron_3471_firmware < 1.7.0`\n- `inspiron_3476_firmware < 1.14.0`\n- `inspiron_3477_firmware < 1.16.0`\n- `inspiron_3480_firmware < 1.15.0`\n- `inspiron_3480_firmware < 1.12.0`\n- `inspiron_3481_firmware < 1.14.0`\n- `inspiron_3576_firmware < 1.14.0`\n- `inspiron_3580_firmware < 1.15.0`\n- `inspiron_3581_firmware < 1.14.0`\n- `inspiron_3668_firmware < 1.17.1`\n- `inspiron_3670_firmware < 2.19.0`\n- `inspiron_3671_firmware < 1.7.0`\n- `inspiron_3780_firmware < 1.15.0`\n- `inspiron_3781_firmware < 1.14.0`\n- `inspiron_3880_firmware < 1.5.1`\n- `inspiron_3881_firmware < 1.5.1`\n- `inspiron_5370_firmware < 1.19.0`\n- `inspiron_5400_firmware < 1.5.2`\n- `inspiron_5401_firmware < 1.5.2`\n- `inspiron_5477_firmware < 1.2.15`\n- `inspiron_5480_firmware < 2.11.0`\n- `inspiron_5481_firmware < 2.11.0`\n- `inspiron_5482_firmware < 2.11.0`\n- `inspiron_5490_firmware < 1.10.0`\n- `inspiron_5570_firmware < 1.6.0`\n- `inspiron_5580_firmware < 2.11.0`\n- `inspiron_5680_firmware < 2.7.0`\n- `inspiron_5770_firmware < 1.6.0`\n- `inspiron_7370_firmware < 1.20.0`\n- `inspiron_7373_firmware < 1.20.0`\n- `inspiron_7380_firmware < 1.14.0`\n- `inspiron_7386_firmware < 1.11.0`\n- `inspiron_7467_firmware < 1.15.0`\n- `inspiron_7472_firmware < 1.8.0`\n- `inspiron_7567_firmware < 1.15.0`\n- `inspiron_7580_firmware < 1.14.0`\n- `inspiron_7586_firmware < 1.11.0`\n- `inspiron_7590_firmware < 1.11.0`\n- `inspiron_7591_firmware < 1.11.0`\n- `inspiron_7700_firmware < 1.5.2`\n- `inspiron_7777_firmware < 1.2.15`\n- `inspiron_7786_firmware < 1.11.0`\n- `inspiron_7790_firmware < 1.10.0`\n- `inspiron_5491_firmware < 1.10.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `alienware_13_r3_firmware 1.13.0`\n- `alienware_15_r3_firmware 1.13.0`\n- `alienware_15_r4_firmware 1.14.0`\n- `alienware_17_r4_firmware 1.13.0`\n- `alienware_17_r5_firmware 1.14.0`\n- `alienware_area_51m_r1_firmware 1.15.1`\n- `alienware_area_51m_r2_firmware 1.10.0`\n- `alienware_aurora_r11_firmware 1.0.9`\n- `alienware_aurora_r12_firmware 1.1.7`\n- `alienware_aurora_r7_firmware 1.0.25`\n- `alienware_aurora_r8_firmware 1.0.17`\n- `alienware_aurora_r9_firmware 1.0.14`\n- `alienware_aurora_ryzen_edition_firmware 2.2.4`\n- `alienware_m15_r1_firmware 2.9.0`\n- `alienware_m15_r2_firmware 1.9.0`\n- `alienware_m15_r3_firmware 1.11.0`\n- `alienware_m17_r1_firmware 2.9.0`\n- `alienware_m17_r2_firmware 1.9.0`\n- `alienware_m17_r3_firmware 1.11.0`\n- `alienware_x15_r1_firmware 1.4.0`\n- `alienware_x17_r1_firmware 1.4.0`\n- `chengming_3977_firmware 1.13.0`\n- `chengming_3980_firmware 2.19.0`\n- `chengming_3988_firmware 1.7.0`\n- `chengming_3990_firmware 1.5.1`\n- `chengming_3991_firmware 1.5.1`\n- `g3_3579_firmware 1.17.0`\n- `g3_3590_firmware 1.14.0`\n- `g3_3779_firmware 1.17.0`\n- `g5_5000_firmware 1.3.0`\n- `g5_5090_firmware 1.9.0`\n- `g5_5587_firmware 1.17.0`\n- `g5_5590_firmware 1.16.0`\n- `g7_7587_firmware 1.17.0`\n- `embedded_box_pc_5000_firmware 1.11.0`\n- `inspiron_13_5378_firmware 1.34.0`\n- `inspiron_13_5379_firmware 1.17.0`\n- `inspiron_14_3467_firmware 2.16.0`\n- `inspiron_14_5468_firmware 1.15.0`\n- `inspiron_15_3567_firmware 2.16.0`\n- `inspiron_15_5566_firmware 1.15.0`\n- `inspiron_15_5578_firmware 1.34.0`\n- `inspiron_15_5579_firmware 1.17.0`\n- `inspiron_15_5582_firmware 2.11.0`\n- `inspiron_15_7570_firmware 1.20.0`\n- `inspiron_15_7572_firmware 1.8.0`\n- `inspiron_15_7573_firmware 1.20.0`\n- `inspiron_15_7577_firmware 1.14.0`\n- `inspiron_17_7773_firmware 1.17.0`\n- `inspiron_3268_firmware 1.17.1`\n- `inspiron_3277_firmware 1.16.0`\n- `inspiron_3280_firmware 1.12.0`\n- `inspiron_3470_firmware 2.19.0`\n- `inspiron_3471_firmware 1.7.0`\n- `inspiron_3476_firmware 1.14.0`\n- `inspiron_3477_firmware 1.16.0`\n- `inspiron_3480_firmware 1.12.0`\n- `inspiron_3481_firmware 1.14.0`\n- `inspiron_3576_firmware 1.14.0`\n- `inspiron_3580_firmware 1.15.0`\n- `inspiron_3581_firmware 1.14.0`\n- `inspiron_3668_firmware 1.17.1`\n- `inspiron_3670_firmware 2.19.0`\n- `inspiron_3671_firmware 1.7.0`\n- `inspiron_3780_firmware 1.15.0`\n- `inspiron_3781_firmware 1.14.0`\n- `inspiron_3880_firmware 1.5.1`\n- `inspiron_3881_firmware 1.5.1`\n- `inspiron_5370_firmware 1.19.0`\n- `inspiron_5400_firmware 1.5.2`\n- `inspiron_5401_firmware 1.5.2`\n- `inspiron_5477_firmware 1.2.15`\n- `inspiron_5480_firmware 2.11.0`\n- `inspiron_5481_firmware 2.11.0`\n- `inspiron_5482_firmware 2.11.0`\n- `inspiron_5490_firmware 1.10.0`\n- `inspiron_5570_firmware 1.6.0`\n- `inspiron_5580_firmware 2.11.0`\n- `inspiron_5680_firmware 2.7.0`\n- `inspiron_5770_firmware 1.6.0`\n- `inspiron_7370_firmware 1.20.0`\n- `inspiron_7373_firmware 1.20.0`\n- `inspiron_7380_firmware 1.14.0`\n- `inspiron_7386_firmware 1.11.0`\n- `inspiron_7467_firmware 1.15.0`\n- `inspiron_7472_firmware 1.8.0`\n- `inspiron_7567_firmware 1.15.0`\n- `inspiron_7580_firmware 1.14.0`\n- `inspiron_7586_firmware 1.11.0`\n- `inspiron_7590_firmware 1.11.0`\n- `inspiron_7591_firmware 1.11.0`\n- `inspiron_7700_firmware 1.5.2`\n- `inspiron_7777_firmware 1.2.15`\n- `inspiron_7786_firmware 1.11.0`\n- `inspiron_7790_firmware 1.10.0`\n- `inspiron_5491_firmware 1.10.0`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}