What is the CVSS score of CVE-2022-45427?

CVE-2022-45427 has a CVSS 3.1 base score of 7.2 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.7%.

Is there a patch available for CVE-2022-45427?

Yes, a patch is available for CVE-2022-45427. Update the affected software to the latest version immediately.

Dss Express CVE-2022-45427

HIGH

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

2022-12-27 cybersecurity@dahuatech.com

File Upload Dahua Dss Express Dss Professional Dhi Dss7016D S2 Firmware Dhi Dss7016Dr S2 Firmware Dhi Dss4004 S2 Firmware Dahuasecurity

7.2

CVSS 3.1 · NVD

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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 7.2 (HIGH). Attack characteristics: network attack vector, low complexity, high 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 (CVSS 7.0-8.9).

Patch available 0.7% exploitation probability (EPSS)

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AnalysisAI

Some Dahua software products have a vulnerability of unrestricted upload of file. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. This Unrestricted File Upload vulnerability could allow attackers to upload malicious files that can be executed on the server.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. 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. Some Dahua software products have a vulnerability of unrestricted upload of file. After obtaining the permissions of administrators, by sending a specific crafted packet to the vulnerable interface, an attacker can upload arbitrary files. Affected products include: Dahuasecurity Dss Express, Dahuasecurity Dss Professional, Dahuasecurity Dhi-Dss7016D-S2 Firmware, Dahuasecurity Dhi-Dss7016Dr-S2 Firmware, Dahuasecurity Dhi-Dss4004-S2 Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.2 HIGH

AV:N/AC:L/PR:H/UI:N/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

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

Some Dahua software products have a vulnerability of unrestricted upload of file. After obtaining the permissions of administrators, by sending a specific crafted packet to the vulnerable interface, an attacker can upload arbitrary files.

Threat Intelligence Overview

EPSS Score

0.7%

Top 51% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

VulDB

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 0.7%

Patch available Yes

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: +36

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)NVD

cpe:2.3:a:dahuasecurity:dss_express:7.002.1760000.2:*:*:*:*:*:*:*

cpe:2.3:a:dahuasecurity:dss_express:8.0.2:*:*:*:*:*:*:*

cpe:2.3:a:dahuasecurity:dss_express:8.0.4:*:*:*:*:*:*:*

cpe:2.3:a:dahuasecurity:dss_express:8.1:*:*:*:*:*:*:*

cpe:2.3:a:dahuasecurity:dss_express:8.1.1:*:*:*:*:*:*:*

cpe:2.3:a:dahuasecurity:dss_professional:7.002.1760000.2:*:*:*:*:*:*:*

cpe:2.3:a:dahuasecurity:dss_professional:8.0.2:*:*:*:*:*:*:*

cpe:2.3:a:dahuasecurity:dss_professional:8.0.4:*:*:*:*:*:*:*

cpe:2.3:a:dahuasecurity:dss_professional:8.1:*:*:*:*:*:*:*

cpe:2.3:a:dahuasecurity:dss_professional:8.1.1:*:*:*:*:*:*:*

cpe:2.3:o:dahuasecurity:dhi-dss7016d-s2_firmware:1.001.0000001.2:*:*:*:*:*:*:*

cpe:2.3:o:dahuasecurity:dhi-dss7016d-s2_firmware:8.0.2:*:*:*:*:*:*:*

cpe:2.3:o:dahuasecurity:dhi-dss7016d-s2_firmware:8.0.4:*:*:*:*:*:*:*

cpe:2.3:o:dahuasecurity:dhi-dss7016d-s2_firmware:8.1:*:*:*:*:*:*:*

cpe:2.3:o:dahuasecurity:dhi-dss7016dr-s2_firmware:1.001.0000001.2:*:*:*:*:*:*:*

cpe:2.3:o:dahuasecurity:dhi-dss7016dr-s2_firmware:8.0.2:*:*:*:*:*:*:*

cpe:2.3:o:dahuasecurity:dhi-dss7016dr-s2_firmware:8.0.4:*:*:*:*:*:*:*

cpe:2.3:o:dahuasecurity:dhi-dss7016dr-s2_firmware:8.1:*:*:*:*:*:*:*

cpe:2.3:o:dahuasecurity:dhi-dss4004-s2_firmware:1.001.0000001.2:*:*:*:*:*:*:*

cpe:2.3:o:dahuasecurity:dhi-dss4004-s2_firmware:8.0.2:*:*:*:*:*:*:*

+ 2 more

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Same weakness CWE-434 – Unrestricted Upload of File with Dangerous Type

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CVE-2016-3088 CRITICAL POC

9.8

CVE-2021-31207 MEDIUM POC

6.6

CVE-2025-52691 CRITICAL POC

10.0

CVE-2017-12617 HIGH POC

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CVE-2024-50623 CRITICAL POC

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CVE-2017-11357 CRITICAL POC

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CVE-2017-12615 HIGH POC

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CVE-2018-9206 CRITICAL POC

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Same technique File Upload

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CVE-2020-1938 CRITICAL POC

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References

Advisories & patches

PATCH https://www.dahuasecurity.com/support/cybersecurity/details/1137 ADVISORY https://vuldb.com/vuln/216891

Search Externally

GitHub PoC

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