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PatchSiren cyber security CVE debrief

CVE-2026-9489 Acer CVE debrief

NitroSense 3.x before 3.01.3052 contains a Local Privilege Escalation (LPE) vulnerability. The application exposes a Windows Named Pipe that uses a custom protocol to invoke internal functions. This Named Pipe is misconfigured, allowing any authenticated local user to execute arbitrary code with NT AUTHORITY SYSTEM privileges and to delete arbitrary files with SYSTEM privileges. By leveraging this, an attacker can execute arbitrary code on the target system with elevated privileges.

Vendor
Acer
Product
NitrorSense V3
CVSS
HIGH 8.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-25
Original CVE updated
2026-07-23
Advisory published
2026-05-25
Advisory updated
2026-07-23

Who should care

Organizations and individuals using Acer systems with NitroSense software versions prior to 3.01.3052 should prioritize patching. System administrators managing endpoints with NitroSense installed should assess exposure and apply updates. Security teams should monitor for potential privilege escalation attempts on unpatched systems.

Technical summary

The vulnerability stems from a misconfigured Windows Named Pipe in NitroSense 3.x that exposes internal functions through a custom protocol. The Named Pipe's access control configuration fails to properly restrict which authenticated users can connect to it, allowing any local authenticated user to invoke functions that execute with SYSTEM privileges. This enables both arbitrary code execution and arbitrary file deletion with elevated privileges. The attack requires local access and valid user credentials, but no user interaction. The CVSS 4.0 score of 8.5 (HIGH) reflects significant impacts across confidentiality, integrity, and availability dimensions.

Defensive priority

HIGH

Recommended defensive actions

  • Upgrade NitroSense to version 3.01.3052 or later to remediate this vulnerability
  • Review and restrict local user access to systems running NitroSense where patching is not immediately possible
  • Monitor for suspicious Named Pipe activity related to NitroSense processes
  • Apply principle of least privilege for local user accounts on affected systems
  • Review Acer's knowledge base guidance for additional mitigation steps

Evidence notes

The vulnerability description indicates this affects NitroSense 3.x versions prior to 3.01.3052. The CVSS 4.0 vector (AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H) confirms local attack vector with low attack complexity, low privileges required, and high impacts to confidentiality, integrity, and availability. The weakness enumerations include CWE-22 (Path Traversal), CWE-269 (Improper Privilege Management), CWE-284 (Improper Access Control), and CWE-732 (Incorrect Permission Assignment for Critical Resource).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-9489 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-9489

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-9489 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-9489

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

    URL: https://community.acer.com/en/kb/articles/19652

    8fc372e3-d9c5-46e4-9410-38469745c639

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.