What is CVE-2021-36342?

CVE-2021-36342 is a high-severity vulnerability in Dell Alienware_13_r3, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2022-01-24.

How severe is CVE-2021-36342?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Dell Alienware_13_r3

CVE-2021-36342

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.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (16.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Dell Alienware_13_r3
Dell Alienware_13_r3_firmware
Dell Alienware_15_r3
Dell Alienware_15_r3_firmware
Dell Alienware_15_r4
Dell Alienware_15_r4_firmware
Dell Alienware_17_r4
Dell Alienware_17_r4_firmware
Dell Alienware_17_r5
Dell Alienware_17_r5_firmware

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-20 — Improper Input Validation

References

security_alert@emc.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-36342?: CVE-2021-36342 is a high-severity vulnerability in Dell Alienware_13_r3, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2022-01-24.
How severe is CVE-2021-36342?: High severity. CVSS v3 base score is 7.5 out of 10.