What is the CVSS score of CVE-2019-12621?

CVE-2019-12621 has a CVSS 3.1 base score of 7.4 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 0.4%.

Hyperflex Hx220C M5 Firmware CVE-2019-12621

HIGH

Key Management Errors (CWE-320)

2019-08-21 psirt@cisco.com

Cisco Information Disclosure Hyperflex Hx220C M5 Firmware Hyperflex Hx240C M5 Firmware Hyperflex Hx220C Af M5 Firmware Hyperflex Hx240C Af M5 Firmware Hyperflex Hx220C Edge M5 Firmware

7.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.4 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Aug 21, 2019 - 18:15 nvd

HIGH 7.4

DescriptionNVD

A vulnerability in Cisco HyperFlex Software could allow an unauthenticated, remote attacker to perform a man-in-the-middle attack. The vulnerability is due to insufficient key management. An attacker could exploit this vulnerability by obtaining a specific encryption key for the cluster. A successful exploit could allow the attacker to perform a man-in-the-middle attack against other nodes in the cluster.

AnalysisAI

A vulnerability in Cisco HyperFlex Software could allow an unauthenticated, remote attacker to perform a man-in-the-middle attack. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-320. A vulnerability in Cisco HyperFlex Software could allow an unauthenticated, remote attacker to perform a man-in-the-middle attack. The vulnerability is due to insufficient key management. An attacker could exploit this vulnerability by obtaining a specific encryption key for the cluster. A successful exploit could allow the attacker to perform a man-in-the-middle attack against other nodes in the cluster. Affected products include: Cisco Hyperflex Hx220C M5 Firmware, Cisco Hyperflex Hx240C M5 Firmware, Cisco Hyperflex Hx220C Af M5 Firmware, Cisco Hyperflex Hx240C Af M5 Firmware, Cisco Hyperflex Hx220C Edge M5 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.