What is the CVSS score of CVE-2025-10220?

CVE-2025-10220 has a CVSS 4.0 base score of 9.3 (Critical). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. EPSS exploitation probability: 0.4%.

How to fix or mitigate CVE-2025-10220?

Within 7 days: Identify all affected systems running the NuGet dependency components in AxxonSoft Axxon One VMS 2 and apply vendor patches promptly. Monitor vendor channels for patch availability.

Axxon One CVE-2025-10220

CRITICAL

Use of Unmaintained Third Party Components (CWE-1104)

2025-09-10 15ede60e-6fda-426e-be9c-e788f151a377

RCE Google Microsoft Axxon One Axxonsoft

9.3

CVSS 4.0 · Vendor: 15ede60e-6fda-426e-be9c-e788f151a377

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Vulnerability Assessment

Weakness	CWE CWE-1104 OWASP Top 10:2025 A03:2025 - Software Supply Chain Failures ASVS 5.0 V15 - Secure Coding and Architecture Dependency maintenance
Impact	CVSS score of 9.3 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.43%.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

Use of Unmaintained Third Party Components (CWE-1104) in the NuGet dependency components in AxxonSoft Axxon One VMS 2.0.0 through 2.0.4 on Windows allows a remote attacker to execute arbitrary code. Rated critical severity (CVSS 9.3), 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. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-1104. Use of Unmaintained Third Party Components (CWE-1104) in the NuGet dependency components in AxxonSoft Axxon One VMS 2.0.0 through 2.0.4 on Windows allows a remote attacker to execute arbitrary code or bypass security features via exploitation of vulnerable third-party packages such as Google.Protobuf, DynamicData, System.Runtime.CompilerServices.Unsafe, and others. Affected products include: Axxonsoft Axxon One. Version information: through 2.0.4.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (15ede60e-6fda-426e-be9c-e788f151a377) PRIMARY 9.3 CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (15ede60e-6fda-426e-be9c-e788f151a377) · only source for this CVE.

CVSS VectorVendor: 15ede60e-6fda-426e-be9c-e788f151a377

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

Vulnerable system: Confidentiality

High

Vulnerable system: Integrity

High

Vulnerable system: Availability

High

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

DescriptionCVE.org

Use of Unmaintained Third Party Components (CWE-1104) in the NuGet dependency components in AxxonSoft Axxon One VMS 2.0.0 through 2.0.4 on Windows allows a remote attacker to execute arbitrary code or bypass security features via exploitation of vulnerable third-party packages such as Google.Protobuf, DynamicData, System.Runtime.CompilerServices.Unsafe, and others.

Executive ViewAI

Why It Matters

Organizations using the NuGet dependency components in AxxonSoft Axxon One VMS 2.0.0 face critical risk from CVE-2025-10220 rated CVSS 9.3. Successful exploitation could critically impact the confidentiality, integrity, and availability of affected systems. Organizations should apply vendor updates immediately when available and implement compensating controls in the interim.

Business Impact: Severe

Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score

0.4%

Top 38% exploitable

Data Quality

3 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 CRITICAL

CISA KEV No

Public POC No

EPSS 0.4%

Patch available No

Active threat No

Deciding rule

CRITICAL severity

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.