VulnerabilityModified
CVE-2021-21573
Dell BIOSConnect feature contains a buffer overflow vulnerability.
HIGH 7.5EPSS 0.28%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Dell BIOSConnect feature contains a buffer overflow vulnerability. An authenticated malicious admin user with local access to the system may potentially exploit this vulnerability to run arbitrary code and bypass UEFI restrictions.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.28% probability · 20th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-121, CWE-787
- Affected
- dell/alienware m15 r6 firmware · dell/chengming 3990 firmware · dell/chengming 3991 firmware · dell/g15 5510 firmware · dell/g15 5511 firmware · dell/g3 3500 firmware · dell/g5 5500 firmware · dell/g7 7500 firmware · dell/g7 7700 firmware · dell/inspiron 14 5418 firmware · dell/inspiron 15 5518 firmware · dell/inspiron 15 7510 firmware · dell/inspiron 3501 firmware · dell/inspiron 3880 firmware · dell/inspiron 3881 firmware · dell/inspiron 3891 firmware · dell/inspiron 5300 firmware · dell/inspiron 5301 firmware · dell/inspiron 5310 firmware · dell/inspiron 5400 2-in-1 firmware · +40 more
- Source
- security_alert@emc.com
References
- https://www.dell.com/support/kbdoc/en-us/000188682Vendor Advisory
- https://www.dell.com/support/kbdoc/en-us/000188682Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.