High severity · published Apr 30, 2021
CVE-2021-21540
Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a stack-based overflow vulnerability
8.1
CVSS
1.2%
EPSS
No
On KEV
Description
Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a stack-based overflow vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to overwrite configuration information by injecting arbitrarily large payload.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ID
Integrated Dell Remote Access Controller (iDRAC) · Dell
before 4.40.00.00 · source: vendor
IF
Idrac9 Firmware · Dell
before 4.40.00.00 · source: NVD
Affected product
ID
Integrated Dell Remote Access Controller (iDRAC)
Dell
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21540
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21540
Vendor Advisory
https://www.dell.com/support/kbdoc/000185293
More from Integrated Dell Remote Access Controller (iDRAC)
10.0
CVE-2021-21538
Dell EMC iDRAC9 versions 4.40.00.00 and later, but prior to 4.40.10.00, contain an improper authentication vulnerability
8.2
CVE-2021-36300
iDRAC9 versions prior to 5.00.00.00 contain an improper input validation vulnerability
8.1
CVE-2021-36348
iDRAC9 versions prior to 5.00.20.00 contain an input injection vulnerability
8.1
CVE-2021-36299
Dell iDRAC9 versions 4.40.00.00 and later, but prior to 4.40.29.00 and 5.00.00.00 contain an SQL injection vulnerability
7.2
CVE-2021-36347
iDRAC9 versions prior to 5.00.20.00 and iDRAC8 versions prior to 2.82.82.82 contain a stack-based buffer overflow vulnerability