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nvd[email protected]NVD:CVE-2021-21556
HistoryJun 14, 2021 - 7:15 p.m.

CVE-2021-21556

2021-06-1419:15:08
CWE-121
CWE-787
[email protected]
web.nvd.nist.gov
1

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

0.0004 Low

EPSS

Percentile

5.1%

JSON

Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and T640 Server BIOS contain a stack-based buffer overflow vulnerability in systems with NVDIMM-N installed. A local malicious user with high privileges may potentially exploit this vulnerability, leading to a denial of Service, arbitrary code execution, or information disclosure in UEFI or BIOS Preboot Environment.

Affected configurations

NVD
Node
dellpoweredge_r640_firmwareRange<2.11.2
AND
dellpoweredge_r640Match-
Node
dellpoweredge_r740_firmwareRange<2.11.2
AND
dellpoweredge_r740Match-
Node
dellpoweredge_r740xd_firmwareRange<2.11.2
AND
dellpoweredge_r740xdMatch-
Node
dellpoweredge_r940_firmwareRange<2.11.2
AND
dellpoweredge_r940Match-
Node
dellpoweredge_r840_firmwareRange<2.11.2
AND
dellpoweredge_r840Match-
Node
dellpoweredge_r940xa_firmwareRange<2.11.2
AND
dellpoweredge_r940xaMatch-
Node
dellpoweredge_t640_firmwareRange<2.11.2
AND
dellpoweredge_t640Match-
Node
dellpoweredge_mx740c_firmwareRange<2.11.2
AND
dellpoweredge_mx740cMatch-
Node
dellpoweredge_mx840c_firmwareRange<2.11.2
AND
dellpoweredge_mx840cMatch-

Related

cvelist 1
cve 1
prion 1
cvelist
cvelist
CVE-2021-21556
2021-06-08 00:00:00
cve
cve
CVE-2021-21556
2021-06-14 19:15:08
prion
prion
Stack overflow
2021-06-14 19:15:00

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

0.0004 Low

EPSS

Percentile

5.1%

JSON
Related for NVD:CVE-2021-21556
cvelist1cve1prion1