CVE-2021-21574 — Stack-based Buffer Overflow in Dell Biosconnect

CWE-121 — Stack-based Buffer OverflowCWE-787 — Out-of-bounds Write3 documents3 sources
Severity
7.5HIGHNVD
CNA7.2
EPSS
0.1%
top 74.73%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
129
Dell BiosconnectDell Alienware M15 R6 FirmwareDell Chengming 3990 Firmware+126 more
Timeline
PublishedJun 24
Latest updateMay 24

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 vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:HExploitability: 0.8 | Impact: 6.0

Affected Packages129 packages

▶CVEListV5dell/biosconnectunspecified — Gen 11, Gen 10

🔴Vulnerability Details

2
GHSA
GHSA-666g-rqqj-3462: Dell BIOSConnect feature contains a buffer overflow vulnerability↗2022-05-24
▶
CVEList
CVE-2021-21574: Dell BIOSConnect feature contains a buffer overflow vulnerability↗2021-06-24
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