CVE-2025-8356

CriticalRCE

Published: 08 August 2025

Published

08 August 2025

Modified

18 August 2025

KEV Added

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Patch

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CVSS Score 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0184 83.1th percentile

Risk Priority 21 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-8356 is a critical-severity Path Traversal (CWE-22) vulnerability in Xerox Freeflow Core. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 16.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-10 Information Input Validation good match

prevent

Directly prevents path traversal attacks by validating and sanitizing user-supplied inputs at system entry points to block unauthorized file access.

SI-2 Flaw Remediation good match

prevent

Addresses the specific flaw in Xerox FreeFlow Core by identifying, reporting, and applying timely remediation such as patches from the vendor bulletin.

AC-3 Access Enforcement partial match

prevent

Enforces logical access controls to information and system resources, mitigating unauthorized file access even if path traversal inputs are not fully sanitized.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1059 Command and Scripting Interpreter Execution

Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.

attack.mitre.org →

Why these techniques?

Path traversal in public-facing Xerox FreeFlow Core directly enables T1190 exploitation; escalation to unauthenticated RCE enables arbitrary command execution via T1059.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

In Xerox FreeFlow Core version 8.0.4, an attacker can exploit a Path Traversal vulnerability to access unauthorized files on the server. This can lead to Remote Code Execution (RCE), allowing the attacker to run arbitrary commands on the system.

Deeper analysisAI

CVE-2025-8356 is a Path Traversal vulnerability (CWE-22) affecting Xerox FreeFlow Core version 8.0.4, which enables an attacker to access unauthorized files on the server. This flaw can escalate to Remote Code Execution (CWE-94), allowing arbitrary command execution on the system. The vulnerability carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating critical severity due to its high impact on confidentiality, integrity, and availability.

A remote, unauthenticated attacker can exploit this vulnerability over the network with low attack complexity and no user interaction required. Exploitation begins with path traversal to read sensitive files, potentially chaining to RCE for full system compromise, including running arbitrary commands.

The Xerox Security Bulletin XSB-025-013 provides mitigation details for FreeFlow Core 8.0.5. Additional attack research context is documented by Horizon3.ai.