What is the CVSS score of CVE-2020-11485?

CVE-2020-11485 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.8%.

Bmc Firmware CVE-2020-11485

HIGH

Cross-Site Request Forgery (CSRF) (CWE-352)

2020-10-29 psirt@nvidia.com

RCE Information Disclosure CSRF Intel Nvidia Bmc Firmware

8.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-352 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V3 - Web Frontend Security Anti-CSRF tokens, SameSite cookies MITRE ATT&CK 1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required.
Exploit ScenarioDerived	A remote attacker could trick authenticated users into performing unintended actions by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.8% exploitation probability (EPSS)

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AnalysisAI

NVIDIA DGX servers, all DGX-1 with BMC firmware versions prior to 3.38.30, contains a Cross-Site Request Forgery (CSRF) vulnerability in the AMI BMC firmware in which the web application does not. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement anti-CSRF tokens, validate Origin/Referer headers, use SameSite cookie attribute.

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Technical ContextAI · show details

This vulnerability is classified as Cross-Site Request Forgery (CSRF) (CWE-352), which allows attackers to trick authenticated users into performing unintended actions. NVIDIA DGX servers, all DGX-1 with BMC firmware versions prior to 3.38.30, contains a Cross-Site Request Forgery (CSRF) vulnerability in the AMI BMC firmware in which the web application does not sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request, which can lead to information disclosure or code execution. Affected products include: Intel Bmc Firmware. Version information: prior to 3.38.30.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

NVIDIA DGX servers, all DGX-1 with BMC firmware versions prior to 3.38.30, contains a Cross-Site Request Forgery (CSRF) vulnerability in the AMI BMC firmware in which the web application does not sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request, which can lead to information disclosure or code execution.

Threat Intelligence Overview

EPSS Score

0.8%

Top 49% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.8%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +44

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Cross-Site Request Forgery MEDIUM

Cross-Site Request Forgery exploits the automatic credential inclusion behavior of web browsers.

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.