CVE-2026-12650: Ivanti Neurons for ITSM RCE Vulnerability

CVE-2026-12650 Overview

CVE-2026-12650 is a deserialization of untrusted data vulnerability [CWE-502] affecting Ivanti Neurons for IT Service Management (ITSM) versions prior to 2026.2. A remote authenticated attacker can exploit the flaw to execute arbitrary code on the server. The vulnerability arises when the application deserializes attacker-controlled data without adequate type validation or integrity checks. Successful exploitation grants code execution in the context of the ITSM service, enabling full compromise of the host and pivoting into connected systems. Ivanti published a security advisory documenting the issue alongside multiple related CVEs.

Critical Impact
Authenticated attackers can achieve remote code execution on the Ivanti Neurons for ITSM server, leading to full server compromise and potential lateral movement.

Affected Products

Ivanti Neurons for ITSM versions prior to 2026.2
Ivanti Neurons for ITSM 2026.1 and earlier
On-premises and self-hosted Ivanti Neurons for ITSM deployments

Discovery Timeline

2026-09-08 - CVE-2026-12650 published to NVD
2026-09-09 - Last updated in NVD database

Technical Details for CVE-2026-12650

Vulnerability Analysis

The vulnerability resides in a component of Ivanti Neurons for ITSM that deserializes data received from an authenticated user. When an application converts serialized byte streams back into runtime objects without validating the object graph, attacker-supplied gadgets can trigger arbitrary method invocations during reconstruction. In this case, an authenticated attacker submits a crafted serialized payload that the server rehydrates, causing arbitrary code execution under the privileges of the ITSM application process.

The scope-change indicator in the CVSS vector reflects that code execution in the ITSM service can affect resources beyond its own security boundary, including backend databases, integrated identity providers, and downstream automation targets. Because ITSM platforms typically hold administrative credentials and orchestrate change management, post-exploitation activity can extend across the enterprise. The EPSS probability of 1.46% places this issue in a monitored tier for near-term exploitation attempts.

Root Cause

The root cause is unsafe deserialization of untrusted input [CWE-502]. The affected component accepts serialized data from authenticated sessions and reconstructs objects without enforcing an allowlist of expected types or verifying payload integrity. This design permits gadget chain execution during object reconstruction.

Attack Vector

Exploitation requires network access to the ITSM application and valid authenticated credentials. The attacker crafts a serialized payload containing a gadget chain that resolves to command execution when deserialized. The payload is delivered through a request handler that accepts serialized objects, and execution occurs server-side without additional user interaction. See the Ivanti Security Advisory for ITSM for vendor-provided technical context.

Detection Methods for CVE-2026-12650

Indicators of Compromise

Unexpected child processes spawned by the Ivanti Neurons for ITSM application service, such as cmd.exe, powershell.exe, or shell interpreters
Outbound network connections from the ITSM server to unfamiliar external hosts following authenticated requests
New or modified files in ITSM application directories, particularly web shells or scheduled task artifacts
Anomalous authenticated sessions submitting large binary payloads to ITSM endpoints

Detection Strategies

Inspect application and web server logs for oversized or Base64-encoded payloads submitted to authenticated ITSM endpoints
Correlate authentication events with subsequent process creation on the ITSM host to surface post-authentication code execution
Monitor for .NET or Java deserialization exception traces in ITSM application logs, which can indicate exploitation attempts or reconnaissance

Monitoring Recommendations

Enable process creation auditing on ITSM servers and forward events to a centralized analytics platform
Alert on any process launched by the ITSM service account outside of an approved allowlist
Track privileged account usage originating from the ITSM host, including service account authentication to databases and directory services

How to Mitigate CVE-2026-12650

Immediate Actions Required

Upgrade Ivanti Neurons for ITSM to version 2026.2 or later as documented in the vendor advisory
Rotate credentials, API keys, and service account secrets stored in or accessible from the ITSM environment if compromise is suspected
Restrict network access to ITSM management interfaces to trusted administrative networks
Review authenticated user accounts and disable stale or over-privileged accounts that could be leveraged for exploitation

Patch Information

Ivanti has released a fixed version in Ivanti Neurons for ITSM 2026.2. Administrators should follow the upgrade guidance in the Ivanti Security Advisory for ITSM, which covers this CVE alongside other issues addressed in the same release.

Workarounds

Apply strict network segmentation so only authorized administrators and integrations can reach the ITSM application
Enforce multi-factor authentication on all ITSM accounts to reduce the pool of usable authenticated sessions for attackers
Increase log retention and monitoring on the ITSM host until the patch is deployed to shorten identification time for exploitation attempts