What is the CVSS score of CVE-2019-0541?

CVE-2019-0541 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: 53.2%.

Is there a public PoC exploit available for CVE-2019-0541?

Yes, a public proof-of-concept exploit is available for CVE-2019-0541. Prioritise patching immediately. EPSS: 53.2%.

Is there a patch available for CVE-2019-0541?

Yes, a patch is available for CVE-2019-0541. Update the affected software to the latest version immediately.

Office CVE-2019-0541

HIGH

Command Injection (CWE-77)

2019-01-08 secure@microsoft.com

RCE Command Injection Microsoft Office Excel Viewer Internet Explorer Office Word Viewer Office 365 Proplus

8.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-77 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V1 - Encoding and Sanitization Command injection prevention MITRE ATT&CK 1 technique across 1 tactic: Execution 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. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	A remote attacker could inject arbitrary commands into system command execution by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: In CISA KEV with patch available.

Exploited in the wild (CISA KEV) Patch available 53.2% exploitation probability (EPSS)

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AnalysisAI

A remote code execution vulnerability exists in the way that the MSHTML engine inproperly validates input, aka "MSHTML Engine Remote Code Execution Vulnerability." This affects Microsoft Office,. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Use parameterized APIs, avoid shell execution, validate input with strict allowlists.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Command Injection (CWE-77), which allows attackers to inject arbitrary commands into system command execution. A remote code execution vulnerability exists in the way that the MSHTML engine inproperly validates input, aka "MSHTML Engine Remote Code Execution Vulnerability." This affects Microsoft Office, Microsoft Office Word Viewer, Internet Explorer 9, Internet Explorer 11, Microsoft Excel Viewer, Internet Explorer 10, Office 365 ProPlus. Affected products include: Microsoft Internet Explorer, Microsoft Excel Viewer, Microsoft Office, Microsoft Office 365 Proplus, Microsoft Office Word Viewer.

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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

Lifecycle Timeline

Added to CISA KEV

Jul 14, 2026 - 04:22 CISA

CVE Published

Jan 08, 2019 - 21:29 nvd

HIGH 8.8

DescriptionNVD

A remote code execution vulnerability exists in the way that the MSHTML engine inproperly validates input, aka "MSHTML Engine Remote Code Execution Vulnerability." This affects Microsoft Office, Microsoft Office Word Viewer, Internet Explorer 9, Internet Explorer 11, Microsoft Excel Viewer, Internet Explorer 10, Office 365 ProPlus.

Threat Intelligence Overview

EPSS Score

53.2%

Top 1% exploitable

Exploit

POC

Public exploit code exists

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

CISA KEV

EPSS

Exploit-DB

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 Yes

Public POC Yes

EPSS 53.2%

Patch available Yes

Active threat Yes

Deciding rule

In CISA KEV with patch available

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

Out-of-Cycle

Exploitation· derived

Active

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

High

Priority Score

167

Low Medium High Critical

KEV: +50

EPSS: +53

CVSS: +44

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

OS Command Injection CRITICAL

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

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.

Affected Products (CPE)NVD

cpe:2.3:a:microsoft:internet_explorer:11:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:excel_viewer:2007:sp3:*:*:*:*:*:*

cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:*:*

cpe:2.3:a:microsoft:office:2013:sp1:*:*:*:*:*:*

cpe:2.3:a:microsoft:office:2013:sp1:*:*:rt:*:*:*

cpe:2.3:a:microsoft:office:2016:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:office_365_proplus:-:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:office_word_viewer:-:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*

cpe:2.3:a:microsoft:internet_explorer:10:*:*:*:*:*:*:*

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References

Advisories & patches

PATCH https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0541 REF http://www.securityfocus.com/bid/106402 REF https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0541

Search Externally

GitHub PoC

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