Security readout for executives and security teams
Plain-English summary
This critical Ivanti Neurons for ITSM flaw could let an unauthenticated internet-based attacker take control of a vulnerable server. Successful exploitation could expose sensitive data, alter IT service-management records, and disrupt operations. The supplied version information is inconsistent, so organizations should urgently confirm their exact exposure with Ivanti.
Executive priority
Treat as an urgent remediation and exposure-assessment item because compromise requires no authentication or user interaction and could fully affect server confidentiality, integrity, and availability. Prioritize externally reachable systems, but confirm the correct fixed version before authorizing change because the supplied version data conflicts.
Technical view
CVE-2026-12745 is a CWE-502 deserialization-of-untrusted-data vulnerability enabling remote unauthenticated arbitrary code execution. Its CVSS 3.1 score is 9.8: network-accessible, low complexity, no privileges or user interaction, with high confidentiality, integrity, and availability impact. The description says versions before 2026.2 are affected, while the structured record lists 2026.2 as affected.
Likely exposure
Deployments are potentially exposed where attackers can reach the vulnerable Neurons for ITSM service over a network. Internet-facing instances deserve immediate attention. Actual exposure cannot be determined from the bundle because configuration details and authoritative version boundaries are incomplete and internally inconsistent.
Exploitation context
The supplied sources establish unauthenticated remote code-execution potential but provide no evidence of active exploitation. The CVE is not identified as being in KEV within the bundle. No public exploit availability, attack telemetry, or observed campaign details are provided.
Researcher notes
The central evidence supports CWE-502 and unauthenticated network RCE. Researchers should avoid assuming that 2026.2 is fixed: the narrative says “before 2026.2,” but the structured affected entry names 2026.2 with an affected default. Consult the linked Ivanti advisory for authoritative product matrices, patches, and mitigations. No exploitation evidence is supplied.
Mitigation direction
- Review Ivanti's advisory immediately for authoritative affected versions and remediation instructions.
- Prioritize vendor-supported updates after confirming the corrected release with Ivanti.
- Restrict external access to the ITSM service until remediation is verified.
- Apply network allowlisting or equivalent access controls where operationally feasible.
- Increase monitoring for unusual server processes, connections, and administrative changes.
Validation and detection
- Inventory all Neurons for ITSM deployments and record their exact versions.
- Compare each deployment against Ivanti's current advisory and corrected version guidance.
- Confirm whether vulnerable services are reachable from the internet or untrusted networks.
- Verify remediation through authenticated version and deployment records.
- Review relevant server, application, and security logs for suspicious activity.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-502: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-12745 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9ivantiVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Neurons-for-ITSM-Multiple-CVEs?language=en_USCVE reference, ivanti
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.