VulnerabilityModified

CVE-2022-34400

Dell BIOS contains a heap buffer overflow vulnerability.

HIGH 7.1EPSS 0.21%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 3.1: 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
EPSS: 0.21% probability · 11th percentile
CISA KEV: Not listed
Weakness: CWE-122, CWE-787
Affected: dell/alienware m15 r6 firmware · dell/alienware m15 r7 firmware · dell/alienware m15 ryzen edition r5 firmware · dell/alienware m17 r5 amd firmware · dell/g15 5510 firmware · dell/g15 5511 firmware · dell/g15 5515 firmware · dell/g15 5525 firmware · dell/g5 se 5505 firmware · dell/inspiron 14 5410 2-in-1 firmware · dell/inspiron 15 3511 firmware · dell/inspiron 3195 2-in-1 firmware · dell/inspiron 3275 firmware · dell/inspiron 3475 firmware · dell/inspiron 3505 firmware · dell/inspiron 3515 firmware · dell/inspiron 3525 firmware · dell/inspiron 3585 firmware · dell/inspiron 3595 firmware · dell/inspiron 3785 firmware · +40 more
Source: security_alert@emc.com

References

https://www.dell.com/support/kbdoc/en-us/000205716/dsa-2022-327Vendor Advisory
https://www.dell.com/support/kbdoc/en-us/000205716/dsa-2022-327Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.