CVE-2022-34400

Dell BIOS contains a heap buffer overflow vulnerability. A local attacker with admin privileges could potentially exploit this vulnerability to perform an arbitrary write to SMRAM during SMM.

Published: 2023-02-01 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-34400 is rated Low Risk (32.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.21%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-34400

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.05% 0.21% +0.16%
2 2026-02-02 0.05% 0.05% +0.00%
3 2025-12-17 — 0.05% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-34400

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.1 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.2 [email protected]
7.1 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.2 [email protected]

Weakness enumeration for CVE-2022-34400

Affected software / configurations for CVE-2022-34400

Vendor Product Version Raw CPE
dell alienware_m15_r6_firmware < 1.17.0 cpe:2.3:o:dell:alienware_m15_r6_firmware:*:*:*:*:*:*:*:*
dell alienware_m15_r7_firmware < 1.4.3 cpe:2.3:o:dell:alienware_m15_r7_firmware:*:*:*:*:*:*:*:*
dell alienware_m15_ryzen_edition_r5_firmware < 1.8.0 cpe:2.3:o:dell:alienware_m15_ryzen_edition_r5_firmware:*:*:*:*:*:*:*:*
dell alienware_m17_r5_amd_firmware < 1.4.3 cpe:2.3:o:dell:alienware_m17_r5_amd_firmware:*:*:*:*:*:*:*:*
dell g15_5510_firmware < 1.16.0 cpe:2.3:o:dell:g15_5510_firmware:*:*:*:*:*:*:*:*
dell g15_5511_firmware < 1.18.0 cpe:2.3:o:dell:g15_5511_firmware:*:*:*:*:*:*:*:*
dell g15_5515_firmware < 1.8.0 cpe:2.3:o:dell:g15_5515_firmware:*:*:*:*:*:*:*:*
dell g15_5525_firmware < 1.4.3 cpe:2.3:o:dell:g15_5525_firmware:*:*:*:*:*:*:*:*
dell g5_se_5505_firmware < 1.13.0 cpe:2.3:o:dell:g5_se_5505_firmware:*:*:*:*:*:*:*:*
dell inspiron_14_5410_2-in-1_firmware < 2.15.2 cpe:2.3:o:dell:inspiron_14_5410_2-in-1_firmware:*:*:*:*:*:*:*:*
dell inspiron_15_3511_firmware < 1.18.2 cpe:2.3:o:dell:inspiron_15_3511_firmware:*:*:*:*:*:*:*:*
dell inspiron_3195_2-in-1_firmware < 1.6.0 cpe:2.3:o:dell:inspiron_3195_2-in-1_firmware:*:*:*:*:*:*:*:*
dell inspiron_3275_firmware < 1.9.2 cpe:2.3:o:dell:inspiron_3275_firmware:*:*:*:*:*:*:*:*
dell inspiron_3475_firmware < 1.9.2 cpe:2.3:o:dell:inspiron_3475_firmware:*:*:*:*:*:*:*:*
dell inspiron_3505_firmware < 1.9.0 cpe:2.3:o:dell:inspiron_3505_firmware:*:*:*:*:*:*:*:*
dell inspiron_3515_firmware < 1.9.0 cpe:2.3:o:dell:inspiron_3515_firmware:*:*:*:*:*:*:*:*
dell inspiron_3525_firmware < 1.5.0 cpe:2.3:o:dell:inspiron_3525_firmware:*:*:*:*:*:*:*:*
dell inspiron_3585_firmware < 1.10.0 cpe:2.3:o:dell:inspiron_3585_firmware:*:*:*:*:*:*:*:*
dell inspiron_3595_firmware < 1.5.0 cpe:2.3:o:dell:inspiron_3595_firmware:*:*:*:*:*:*:*:*
dell inspiron_3785_firmware < 1.10.0 cpe:2.3:o:dell:inspiron_3785_firmware:*:*:*:*:*:*:*:*
dell inspiron_3891_firmware < 1.12.0 cpe:2.3:o:dell:inspiron_3891_firmware:*:*:*:*:*:*:*:*
dell inspiron_5310_firmware < 2.15.0 cpe:2.3:o:dell:inspiron_5310_firmware:*:*:*:*:*:*:*:*
dell inspiron_5405_firmware < 1.9.0 cpe:2.3:o:dell:inspiron_5405_firmware:*:*:*:*:*:*:*:*
dell inspiron_5410_firmware < 2.14.0 cpe:2.3:o:dell:inspiron_5410_firmware:*:*:*:*:*:*:*:*
dell inspiron_5415_firmware < 1.13.0 cpe:2.3:o:dell:inspiron_5415_firmware:*:*:*:*:*:*:*:*
dell inspiron_5425_firmware < 1.5.0 cpe:2.3:o:dell:inspiron_5425_firmware:*:*:*:*:*:*:*:*
dell inspiron_5485_firmware < 2.11.0 cpe:2.3:o:dell:inspiron_5485_firmware:*:*:*:*:*:*:*:*
dell inspiron_5485_2-in-1_firmware < 2.11.0 cpe:2.3:o:dell:inspiron_5485_2-in-1_firmware:*:*:*:*:*:*:*:*
dell inspiron_5505_firmware < 1.9.0 cpe:2.3:o:dell:inspiron_5505_firmware:*:*:*:*:*:*:*:*
dell inspiron_5510_firmware < 2.15.2 cpe:2.3:o:dell:inspiron_5510_firmware:*:*:*:*:*:*:*:*
dell inspiron_5515_firmware < 1.13.0 cpe:2.3:o:dell:inspiron_5515_firmware:*:*:*:*:*:*:*:*
dell inspiron_5585_firmware < 2.11.0 cpe:2.3:o:dell:inspiron_5585_firmware:*:*:*:*:*:*:*:*
dell inspiron_7405_2-in-1_firmware < 1.10.1 cpe:2.3:o:dell:inspiron_7405_2-in-1_firmware:*:*:*:*:*:*:*:*
dell inspiron_7415_firmware < 1.13.0 cpe:2.3:o:dell:inspiron_7415_firmware:*:*:*:*:*:*:*:*
dell inspiron_7425_firmware < 1.5.0 cpe:2.3:o:dell:inspiron_7425_firmware:*:*:*:*:*:*:*:*
dell inspiron_7510_firmware < 1.12.0 cpe:2.3:o:dell:inspiron_7510_firmware:*:*:*:*:*:*:*:*
dell inspiron_7610_firmware < 1.12.0 cpe:2.3:o:dell:inspiron_7610_firmware:*:*:*:*:*:*:*:*
dell latitude_3320_firmware < 1.18.2 cpe:2.3:o:dell:latitude_3320_firmware:*:*:*:*:*:*:*:*
dell latitude_3420_firmware < 1.23.2 cpe:2.3:o:dell:latitude_3420_firmware:*:*:*:*:*:*:*:*
dell latitude_3520_firmware < 1.23.2 cpe:2.3:o:dell:latitude_3520_firmware:*:*:*:*:*:*:*:*
dell latitude_5320_firmware < 1.24.3 cpe:2.3:o:dell:latitude_5320_firmware:*:*:*:*:*:*:*:*
dell latitude_5420_firmware < 1.22.0 cpe:2.3:o:dell:latitude_5420_firmware:*:*:*:*:*:*:*:*
dell latitude_5520_firmware < 1.24.3 cpe:2.3:o:dell:latitude_5520_firmware:*:*:*:*:*:*:*:*
dell latitude_5521_firmware < 1.17.3 cpe:2.3:o:dell:latitude_5521_firmware:*:*:*:*:*:*:*:*
dell latitude_7320_firmware < 1.20.0 cpe:2.3:o:dell:latitude_7320_firmware:*:*:*:*:*:*:*:*
dell latitude_7320_detachable_firmware < 1.17.2 cpe:2.3:o:dell:latitude_7320_detachable_firmware:*:*:*:*:*:*:*:*
dell latitude_7420_firmware < 1.20.0 cpe:2.3:o:dell:latitude_7420_firmware:*:*:*:*:*:*:*:*
dell latitude_7520_firmware < 1.20.0 cpe:2.3:o:dell:latitude_7520_firmware:*:*:*:*:*:*:*:*
dell latitude_9420_firmware < 1.16.2 cpe:2.3:o:dell:latitude_9420_firmware:*:*:*:*:*:*:*:*
dell latitude_9520_firmware < 1.17.0 cpe:2.3:o:dell:latitude_9520_firmware:*:*:*:*:*:*:*:*
dell latitude_rugged_5430_firmware < 1.12.0 cpe:2.3:o:dell:latitude_rugged_5430_firmware:*:*:*:*:*:*:*:*
dell latitude_rugged_7330_firmware < 1.12.0 cpe:2.3:o:dell:latitude_rugged_7330_firmware:*:*:*:*:*:*:*:*
dell latitude_5421_firmware < 1.15.0 cpe:2.3:o:dell:latitude_5421_firmware:*:*:*:*:*:*:*:*
dell optiplex_5090_firmware < 1.12.0 cpe:2.3:o:dell:optiplex_5090_firmware:*:*:*:*:*:*:*:*
dell optiplex_5490_all-in-one_firmware < 1.15.0 cpe:2.3:o:dell:optiplex_5490_all-in-one_firmware:*:*:*:*:*:*:*:*
dell optiplex_7090_tower_firmware < 1.12.0 cpe:2.3:o:dell:optiplex_7090_tower_firmware:*:*:*:*:*:*:*:*
dell optiplex_7090_ultra_firmware < 1.15.0 cpe:2.3:o:dell:optiplex_7090_ultra_firmware:*:*:*:*:*:*:*:*
dell optiplex_7090_aio_firmware < 1.15.0 cpe:2.3:o:dell:optiplex_7090_aio_firmware:*:*:*:*:*:*:*:*
dell precision_3450_firmware < 1.12.0 cpe:2.3:o:dell:precision_3450_firmware:*:*:*:*:*:*:*:*
dell precision_3560_firmware < 1.24.3 cpe:2.3:o:dell:precision_3560_firmware:*:*:*:*:*:*:*:*
dell precision_3561_firmware < 1.17.3 cpe:2.3:o:dell:precision_3561_firmware:*:*:*:*:*:*:*:*
dell precision_3650_tower_firmware < 1.16.0 cpe:2.3:o:dell:precision_3650_tower_firmware:*:*:*:*:*:*:*:*
dell precision_5560_firmware < 1.15.2 cpe:2.3:o:dell:precision_5560_firmware:*:*:*:*:*:*:*:*
dell precision_5760_firmware < 1.15.2 cpe:2.3:o:dell:precision_5760_firmware:*:*:*:*:*:*:*:*
dell precision_7560_firmware < 1.16.0 cpe:2.3:o:dell:precision_7560_firmware:*:*:*:*:*:*:*:*
dell precision_7760_firmware < 1.16.0 cpe:2.3:o:dell:precision_7760_firmware:*:*:*:*:*:*:*:*
dell vostro_3405_firmware < 1.9.0 cpe:2.3:o:dell:vostro_3405_firmware:*:*:*:*:*:*:*:*
dell vostro_3425_firmware < 1.5.0 cpe:2.3:o:dell:vostro_3425_firmware:*:*:*:*:*:*:*:*
dell vostro_3510_firmware < 1.18.2 cpe:2.3:o:dell:vostro_3510_firmware:*:*:*:*:*:*:*:*
dell vostro_3515_firmware < 1.9.0 cpe:2.3:o:dell:vostro_3515_firmware:*:*:*:*:*:*:*:*
dell vostro_3525_firmware < 1.5.0 cpe:2.3:o:dell:vostro_3525_firmware:*:*:*:*:*:*:*:*
dell vostro_3690_firmware < 1.12.0 cpe:2.3:o:dell:vostro_3690_firmware:*:*:*:*:*:*:*:*
dell vostro_3890_firmware < 1.12.0 cpe:2.3:o:dell:vostro_3890_firmware:*:*:*:*:*:*:*:*
dell vostro_5310_firmware < 2.15.0 cpe:2.3:o:dell:vostro_5310_firmware:*:*:*:*:*:*:*:*
dell vostro_5410_firmware < 2.15.2 cpe:2.3:o:dell:vostro_5410_firmware:*:*:*:*:*:*:*:*
dell vostro_5415_firmware < 1.13.0 cpe:2.3:o:dell:vostro_5415_firmware:*:*:*:*:*:*:*:*
dell vostro_5510_firmware < 2.15.2 cpe:2.3:o:dell:vostro_5510_firmware:*:*:*:*:*:*:*:*
dell vostro_5515_firmware < 1.13.0 cpe:2.3:o:dell:vostro_5515_firmware:*:*:*:*:*:*:*:*
dell vostro_5625_firmware < 1.5.0 cpe:2.3:o:dell:vostro_5625_firmware:*:*:*:*:*:*:*:*
dell vostro_5890_firmware < 1.12.0 cpe:2.3:o:dell:vostro_5890_firmware:*:*:*:*:*:*:*:*

References for CVE-2022-34400

cvelogic Threat Intelligence