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01 Record

CVE-2021-21572

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

HighPUBLISHEDCNA: dell
CNA base score7.2 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

02 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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.26% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 17.9% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-06-24 17:00Z5 YR AGO
Last updated
2024-09-16 19:30Z2 YR AGO
Reserved
2021-01-04
Assigning CNA
dell
Record state
PUBLISHED
Severity
High (CVSS 7.2)
CNA CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Weaknesses
  • CWE-122Heap-based Buffer OverflowVariant
  • CWE-787Out-of-bounds WriteBase
Data version
5.1
Document digest
7d641da50d81647359760420d6a40637a0866617f451d6b2d09df3b26f15f1a7

05 Affected products

VendorProductVersionsPlatforms
DellBIOSConnect< Gen 11, Gen 10—

06 References