What is the CVSS score of CVE-2019-3705?

CVE-2019-3705 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 4.2%.

Idrac6 Firmware CVE-2019-3705

CRITICAL

Classic Buffer Overflow (CWE-120)

2019-04-26 security_alert@emc.com

Buffer Overflow Dell RCE Idrac6 Firmware Idrac7 Firmware Idrac8 Firmware Idrac9 Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Apr 26, 2019 - 19:29 nvd

CRITICAL 9.8

DescriptionNVD

Dell EMC iDRAC6 versions prior to 2.92, iDRAC7/iDRAC8 versions prior to 2.61.60.60, and iDRAC9 versions prior to 3.20.21.20, 3.21.24.22, 3.21.26.22 and 3.23.23.23 contain a stack-based buffer overflow vulnerability. An unauthenticated remote attacker may potentially exploit this vulnerability to crash the webserver or execute arbitrary code on the system with privileges of the webserver by sending specially crafted input data to the affected system.

AnalysisAI

Dell EMC iDRAC6 versions prior to 2.92, iDRAC7/iDRAC8 versions prior to 2.61.60.60, and iDRAC9 versions prior to 3.20.21.20, 3.21.24.22, 3.21.26.22 and 3.23.23.23 contain a stack-based buffer. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Dell EMC iDRAC6 versions prior to 2.92, iDRAC7/iDRAC8 versions prior to 2.61.60.60, and iDRAC9 versions prior to 3.20.21.20, 3.21.24.22, 3.21.26.22 and 3.23.23.23 contain a stack-based buffer overflow vulnerability. An unauthenticated remote attacker may potentially exploit this vulnerability to crash the webserver or execute arbitrary code on the system with privileges of the webserver by sending specially crafted input data to the affected system. Affected products include: Dell Idrac6 Firmware, Dell Idrac7 Firmware, Dell Idrac8 Firmware, Dell Idrac9 Firmware. Version information: prior to 2.92.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.