Cyber Resilience

CVE-2025-8356

CriticalRCE

Published: 08 August 2025

Published
08 August 2025
Modified
18 August 2025
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0478 89.7th percentile
Risk Priority 22 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 10.3% 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).

Deeper analysis

Xerox FreeFlow Core version 8.0.4 contains a path traversal vulnerability (CWE-22) that also enables code injection (CWE-94). The flaw permits an attacker to access arbitrary files on the underlying server and ultimately execute commands, reflected in its CVSS 3.1 score of 9.8 with network attack vector, no authentication, and full confidentiality, integrity, and availability impact.

Unauthenticated remote attackers can exploit the issue over the network to read sensitive files and achieve remote code execution, allowing them to run arbitrary commands on the affected system without user interaction.

The vendor’s security bulletin for FreeFlow Core 8.0.5 addresses the vulnerability, and a technical write-up from Horizon3 details how the issue progressed from a support ticket to public disclosure as a zero-day. The associated EPSS score has remained flat at 0.0478 with no material increase observed after publication.

EU & UK References

Vulnerability details

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.

CWE(s)

Related Threats

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.
T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
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

CVEs Like This One

CVE-2026-2251Same product: Xerox Freeflow Core
CVE-2026-2252Same product: Xerox Freeflow Core
CVE-2024-55926Same vendor: Xerox
CVE-2024-55925Same vendor: Xerox
CVE-2024-55927Same vendor: Xerox
CVE-2025-57644Shared CWE-22, CWE-94
CVE-2024-54756Shared CWE-94
CVE-2025-12062Shared CWE-22
CVE-2024-21760Shared CWE-94
CVE-2026-41258Shared CWE-94

Affected Assets

xerox
freeflow core
8.0.4

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

prevent

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

prevent

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

prevent

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

References