CVE-2025-54769

HighPublic PoC

Published: 29 July 2025

Published

29 July 2025

Modified

03 November 2025

KEV Added

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Patch

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CVSS Score 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0612 90.9th percentile

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

Summary

CVE-2025-54769 is a high-severity Path Traversal: '../filedir' (CWE-24) vulnerability in Xorux Lpar2Rrd. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 9.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 AC-6 (Least Privilege) and SI-10 (Information Input Validation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190). 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

Validates uploaded file names and paths to directly prevent directory traversal and unrestricted file placement exploits.

AC-6 Least Privilege good match

prevent

Enforces least privilege to deny read-only authenticated users the ability to perform file upload and write operations.

SI-9 Information Input Restrictions good match

prevent

Restricts unauthorized information inputs such as file uploads for read-only users, blocking the initial exploitation vector.

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 →

Why these techniques?

Direct RCE via authenticated file upload + directory traversal in public-facing web app (LPAR2RRD).

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

NVD Description

An authenticated, read-only user can upload a file and perform a directory traversal to have the uploaded file placed in a location of their choosing. This can be used to overwrite existing PERL modules within the application to achieve remote…

code execution (RCE) by an attacker.

Deeper analysisAI

CVE-2025-54769 is a high-severity vulnerability (CVSS 8.8, CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) affecting LPAR2RRD software, associated with CWE-24 (path equivalence), CWE-434 (unrestricted file upload), and CWE-648. Published on 2025-07-29, it enables an authenticated read-only user to upload a file and exploit directory traversal to place it in an arbitrary location. This allows overwriting existing Perl modules within the application, facilitating remote code execution (RCE).

The attack requires an authenticated read-only user account, exploitable over the network with low complexity and no user interaction. An attacker can achieve RCE by crafting a malicious file upload that traverses directories to target and replace Perl modules, granting high-impact confidentiality, integrity, and availability compromise on the affected system.

Mitigation details are outlined in vendor and researcher advisories, including KoreLogic's KL-001-2025-016, LPAR2RRD's note800.php, and the Full Disclosure mailing list post at seclists.org/fulldisclosure/2025/Jul/19. Security practitioners should consult these references for patching instructions and workarounds.