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CVE-2026-12745 – Unauthenticated Remote Code Execution – Ivanti Neurons for ITSM (before 2026.2)

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Summary

CVE-2026-12745 is a critical Deserialization of Untrusted Data vulnerability (CWE-502) affecting Ivanti Neurons for ITSM. It allows a remote, unauthenticated attacker to execute arbitrary code on the affected server. The flaw carries a CVSS v3.1 base score of 9.8 (Critical) and was disclosed alongside a related deserialization flaw, CVE-2026-12744, in the same product.

Technical details

  • Root cause: The application deserializes untrusted, attacker-supplied data without adequate validation, allowing crafted serialized objects to trigger unintended code execution (CWE-502 / Object Injection, CAPEC-586).
  • Trigger conditions: No authentication or user interaction is required; an attacker only needs network access to a vulnerable Neurons for ITSM instance.
  • Attack vector: Network (remote), low attack complexity.
  • Impact: Full compromise of confidentiality, integrity, and availability — the attacker can execute arbitrary code on the server with the privileges of the application process.

Affected software

  • Ivanti Neurons for ITSM: all on-premises versions prior to 2026.2, including the 2025.2 through 2026.1 release line.
  • Cloud/SaaS deployments of Neurons for ITSM were already remediated by the vendor and are not affected once the vendor-applied fix is in place.

Severity

  • CVSS v3.1 Base Score: 9.8 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation and recommended actions

  • Immediate: Upgrade on-premises Ivanti Neurons for ITSM to version 2026.2 (or apply the vendor’s September 2026 security patches for the 2025.2–2026.1 line) as soon as it is available/released.
  • Cloud/SaaS customers: No action required — Ivanti applied the fix across all cloud/SaaS landscapes on August 9, 2026.
  • If immediate patching is not possible: Restrict network exposure of on-premises Neurons for ITSM instances to trusted networks only, inventory all internet-facing ITSM infrastructure, monitor for anomalous server activity, and review privileged account activity for signs of compromise until the patch can be applied.

How IONIX identifies potentially affected assets

IONIX matches the following signals against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Page title: Ivanti Service Manager
  • Response header x-powered-by: Ivanti Service Manager

References

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How IONIX’s External Exposure Management Platform Detects and Validates
Zero-Days to Shrink MTTR

1

Map your entire attack surface (continously)

IONIX uses multi-factor discovery methods, including DNS analysis, certificate mapping, metadata inspection, and more, to automatically map every internet-facing asset across your environment. This includes cloud instances, third-party platforms, shadow IT, and even forgotten infrastructure that traditional tools miss.

2

Monitor for new CVEs

Dozens of threat intel feeds using agentic technology are continuously analyzed to detect the appearance of proof-of-concept code, exploit kits, and indicators of active targeting. IONIX goes further by applying AI to proactively evaluate whether emerging vulnerabilities are likely to be exploited, even before PoCs go public.

3

Identify Potential External Exposures

Not all CVEs matter. IONIX filters vulnerabilities by asking attacker-centric questions: Can it be reached from the internet? Does it require authentication? Is it being exploited in the wild? This dramatically reduces noise and focuses teams on threats that can actually be weaponized.

4

Create Safe, Scalable Exploit Validations

IONIX transforms real-world PoCs into safe, non-intrusive test payloads that can be run in production environments without disruption. These simulations are precisely targeted to the systems that are vulnerable, ensuring rapid validation without unnecessary load.

5

Execute Exploit Validations

By combining context about software stack, versioning, exposure status, and reachability, IONIX ensures that only the right payloads are executed against the right assets, maximizing efficiency and minimizing risk.

6

Drive Fast and Actionable Remediation

Results are routed through integrations with ticketing, SOAR, and SIEM tools. Issues are written in plain language, bundled into remediation clusters, and prioritized based on asset criticality, exploitability, and blast radius. This shortens mean time to remediation (MTTR) and empowers teams to act with confidence.

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  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
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