What is the CVSS score of CVE-2020-15786?

CVE-2020-15786 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: 0.4%.

Simatic Hmi Basic Panels 2Nd Generation Firmware CVE-2020-15786

CRITICAL

Improper Restriction of Excessive Authentication Attempts (CWE-307)

2020-09-09 productcert@siemens.com

Information Disclosure Simatic Hmi Basic Panels 2Nd Generation Firmware Simatic Hmi Comfort Panels Firmware Simatic Hmi Mobile Panels Firmware Simatic Hmi United Comfort Panels 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

Sep 09, 2020 - 19:15 cve.org

CRITICAL 9.8

DescriptionCVE.org

A vulnerability has been identified in SIMATIC HMI Basic Panels 2nd Generation (incl. SIPLUS variants) (All versions < V16), SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions <= V16), SIMATIC HMI Mobile Panels (All versions <= V16), SIMATIC HMI Unified Comfort Panels (All versions <= V16). Affected devices insufficiently block excessive authentication attempts. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack.

AnalysisAI

A vulnerability has been identified in SIMATIC HMI Basic Panels 2nd Generation (incl. 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 under CWE-307. A vulnerability has been identified in SIMATIC HMI Basic Panels 2nd Generation (incl. SIPLUS variants) (All versions < V16), SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions <= V16), SIMATIC HMI Mobile Panels (All versions <= V16), SIMATIC HMI Unified Comfort Panels (All versions <= V16). Affected devices insufficiently block excessive authentication attempts. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack. Affected products include: Siemens Simatic Hmi Basic Panels 2Nd Generation Firmware, Siemens Simatic Hmi Comfort Panels Firmware, Siemens Simatic Hmi Mobile Panels Firmware, Siemens Simatic Hmi United Comfort Panels 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.