What is the CVSS score of CVE-2021-21557?

CVE-2021-21557 has a CVSS 3.1 base score of 6.7 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.3%.

Is there a patch available for CVE-2021-21557?

Yes, a patch is available for CVE-2021-21557. Update the affected software to the latest version immediately.

Poweredge R6415 Firmware CVE-2021-21557

MEDIUM

Improper Input Validation (CWE-20)

2021-06-14 security_alert@emc.com

6.7

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.7 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Jun 14, 2021 - 19:15 nvd

MEDIUM 6.7

DescriptionNVD

Dell PowerEdge Server BIOS and select Dell Precision Rack BIOS contain an out-of-bounds array access vulnerability. 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 System Management Mode.

AnalysisAI

Dell PowerEdge Server BIOS and select Dell Precision Rack BIOS contain an out-of-bounds array access vulnerability. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-20. Dell PowerEdge Server BIOS and select Dell Precision Rack BIOS contain an out-of-bounds array access vulnerability. 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 System Management Mode. Affected products include: Dell Poweredge R640 Firmware, Dell Poweredge R740 Firmware, Dell Poweredge R740Xd Firmware, Dell Poweredge R940 Firmware, Dell Poweredge R540 Firmware.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.