CVE-2025-35050

CriticalRCE

Published: 09 October 2025

Published

09 October 2025

Modified

09 January 2026

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 0.0029 52.0th percentile

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

Summary

CVE-2025-35050 is a critical-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Newforma Project Center. 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 48.0% 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 AC-14 (Permitted Actions Without Identification or Authentication) and AC-3 (Access Enforcement).

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

AC-14 Permitted Actions Without Identification or Authentication good match

prevent

Directly addresses the missing authentication for the critical deserialization function at the '/remoteweb/remote.rem' endpoint, preventing unauthenticated remote code execution.

SC-7 Boundary Protection good match

prevent

Enforces boundary protection to restrict network access to the vulnerable '/remoteweb/remote.rem' endpoint as recommended in the advisory, blocking remote exploitation.

AC-3 Access Enforcement good match

prevent

Mandates enforcement of access control policies to require authentication or authorization for the deserialization endpoint, mitigating unauthenticated arbitrary code execution.

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?

The vulnerability allows unauthenticated remote code execution via a public-facing web endpoint accepting untrusted .NET deserialization payloads, directly mapping to exploitation of public-facing applications.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

NVD Description

Newforma Info Exchange (NIX) accepts serialized .NET data via the '/remoteweb/remote.rem' endpoint, allowing a remote, unauthenticated attacker to execute arbitrary code with 'NT AUTHORITY\NetworkService' privileges. The vulnerable endpoint is used by Newforma Project Center Server (NPCS), so a compromised NIX…

system can be used to attack an associated NPCS system. To mitigate this vulnerability, restrict network access to the '/remoteweb/remote.rem' endpoint, for example using the IIS URL Rewrite Module.

Deeper analysisAI

CVE-2025-35050 is a critical vulnerability in Newforma Info Exchange (NIX), where the '/remoteweb/remote.rem' endpoint accepts serialized .NET data, enabling remote code execution. This flaw affects NIX deployments, particularly those integrated with Newforma Project Center Server (NPCS), as the endpoint is utilized by NPCS. Assigned 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), it is linked to CWE-306 (Missing Authentication for Critical Function) and CWE-502 (Deserialization of Untrusted Data).

A remote, unauthenticated attacker can exploit this vulnerability by sending malicious serialized .NET payloads to the exposed endpoint, resulting in arbitrary code execution under 'NT AUTHORITY\NetworkService' privileges on the NIX system. Once compromised, the attacker can leverage the NIX system to target an associated NPCS instance, potentially expanding the scope of the compromise within the environment.

Advisories recommend mitigating the vulnerability by restricting network access to the '/remoteweb/remote.rem' endpoint, such as through the IIS URL Rewrite Module. No patches are explicitly mentioned in the available details.