What is the CVSS score of CVE-2022-30216?

CVE-2022-30216 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 88.6%.

Windows Server 2016 CVE-2022-30216

HIGH

Unrestricted Upload of File with Dangerous Type (CWE-434)

2022-07-12 secure@microsoft.com

Microsoft File Upload Windows Server 2016 Windows Server 2022 Windows 10 Windows 11

8.8

CVSS 3.1 · Vendor: microsoft

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Vulnerability Assessment

Weakness	CWE CWE-434 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V5 - File Handling File type validation, storage isolation MITRE ATT&CK 2 techniques across 2 tactics: Command and Control, Persistence 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, low privileges required, no user interaction not required.
Exploit ScenarioDerived	A remote attacker could upload malicious files that can be executed on the server by sending crafted requests to the affected application.

This Week Schedule remediation this week. Why: HIGH severity + EPSS > 10%.

No patch listed yet 88.6% exploitation probability (EPSS)

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AnalysisAI

Windows Server Service Tampering Vulnerability. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.

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 Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. Affected products include: Microsoft Windows 10, Microsoft Windows 11, Microsoft Windows Server 2016, Microsoft Windows Server 2022.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (microsoft) PRIMARY 8.8 HIGH

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

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionCVE.org

Windows Server Service Tampering Vulnerability

Threat Intelligence Overview

EPSS Score

88.6%

Top 0% 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 88.6%

Patch available No

Active threat No

Deciding rule

HIGH severity + EPSS > 10%

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

133

Low Medium High Critical

KEV: 0

EPSS: +89

CVSS: +44

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Malicious File Upload HIGH

Malicious file upload attacks exploit insufficient validation when web applications accept user-provided files.

Affected Products (CPE)CVE.org

cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:arm64:*

cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x86:*

cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:arm64:*

cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x86:*

cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:arm64:*

cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x86:*

cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:arm64:*

cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:x64:*

cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*

cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:*

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References

Advisories & patches

REF https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-30216

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