What is the CVSS score of CVE-2026-0963?

CVE-2026-0963 has a CVSS 3.1 base score of 9.9 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2026-0963?

Within 24 hours: Identify all Crafty Controller instances in your environment and document which systems have internet or untrusted network access. Within 7 days: Implement network segmentation to restrict access to the File Operations API endpoint and enforce strict access controls on authenticated accounts. Within 30 days: Monitor vendor communications for patch availability and develop a deployment plan; evaluate alternative solutions if patches remain unavailable.

Crafty Controller CVE-2026-0963

CRITICAL

Path Traversal (CWE-22)

2026-01-30 cve@gitlab.com

RCE Path Traversal Crafty Controller Craftycontrol

9.9

CVSS 3.1 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Authenticate to Crafty Controller
Delivery

Craft path traversal payload in File Operations API
Exploit

Bypass input neutralization checks
Execution

Write malicious file to executable location
Impact

Achieve remote code execution

Vulnerability Assessment

Weakness	CWE CWE-22 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V5 - File Handling Path canonicalization, traversal prevention MITRE ATT&CK 2 techniques across 2 tactics: Discovery, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	Valid authenticated credentials for Crafty Controller required. Attacker must have access to File Operations API Endpoint. Path traversal sequences must reach executable directories writable by application process.
Impact	CVSS 9.9. Game server management tools run with elevated privileges on the host.
Exploit ScenarioDerived	Authenticated user traverses filesystem to read host credentials or write web shells outside the game server directory.

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

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Path traversal in Crafty Controller game server management allows authenticated attackers to read/write files outside the intended directory. CVSS 9.9 with scope change.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 22:00 CVSS 9.9

Path traversal in Crafty Controller game server manager.

RemediationAI

Update Crafty Controller.

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

CWE-22 in the File Operations API endpoint. Authenticated users can traverse beyond the game server directory.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.9 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

Low

DescriptionCVE.org

An input neutralization vulnerability in the File Operations API Endpoint component of Crafty Controller allows a remote, authenticated attacker to perform file tampering and remote code execution via path traversal.

Executive ViewAI

Why It Matters

A critical vulnerability in Crafty Controller allows authenticated users to execute arbitrary code and modify files on affected systems, potentially leading to complete system compromise. Organizations using Crafty Controller must immediately assess exposure and implement mitigations, as no vendor patch is currently available.

Business Impact: Severe

Compensating Controls

Restrict network access to the File Operations API endpoint using firewall rules and VPN requirements; implement WAF rules to block suspicious path traversal patterns (../ sequences); enforce multi-factor authentication for all user accounts; disable the File Operations API endpoint if not operationally required; conduct enhanced monitoring and logging of all API calls to this component; segment Crafty Controller systems on isolated networks with minimal trust relationships.

Threat Intelligence Overview

EPSS Score

0.1%

Top 68% exploitable

Data Quality

3 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 CRITICAL

CISA KEV No

Public POC No

EPSS 0.1%

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.