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CVE-2026-89083 – Remote Code Execution / Arbitrary File Write – HP Advance (AC Print & Scan / Output

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Summary

CVE-2026-89083 is a critical, unauthenticated remote code injection vulnerability affecting the HP Advance output management platform. The flaw stems from improper control of code generation (CWE-94) in the HP Advance server component and can allow a remote, unauthenticated attacker to achieve elevation of privilege, remote code execution, or arbitrary file write on the affected server under certain conditions. HP has rated the issue Critical, and it affects both HP AC Print & Scan and HP Output Central, core modules of the HP Advance solution used to manage secure pull-print and document capture workflows in enterprise environments.

Technical details

  • Root cause: Improper control of generation of code (CWE-94) within the HP Advance server, which allows attacker-supplied input to influence code/command generation on the server.
  • Trigger conditions: HP states the flaw is exploitable "under certain conditions," indicating a specific server-side code path in the HP Advance server must be reachable, but no authentication or user interaction is required to reach it.
  • Attack vector: Network — the vulnerability is remotely exploitable over the network without prior authentication (PR:N) or user interaction (UI:N), and requires only low attack complexity.
  • Impact: Successful exploitation can result in elevation of privilege, remote code execution, or arbitrary file write on the HP Advance server, which could lead to full compromise of the server and the document/print workflows it manages.

Affected software

  • HP AC Print & Scan — versions prior to V1R4.0.027
  • HP Output Central — versions prior to V1R4.0.029

Severity

  • CVSS v4.0 Base Score: 9.3 (Critical)
  • Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:N

Mitigation and recommended actions

  • Immediate: Upgrade HP AC Print & Scan to version V1R4.0.027 or later, and upgrade HP Output Central to version V1R4.0.029 or later, as published in HP’s security bulletin.
  • If immediate patching is not possible: Restrict network access to the HP Advance server to trusted management networks only, and monitor HP Advance server logs for anomalous or unexpected process/file-write activity until the patched versions can be deployed.
  • Review HP’s official advisory for any additional configuration guidance specific to your deployment.

References

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