HP One Agent: Uncontrolled search path element enables privilege escalation
Summary
HP One Agent Software on certain HP PC products contains a potential vulnerability (CWE-427, uncontrolled search path element) that may allow privilege escalation and/or arbitrary code execution. Exploitation requires local access, for example by a user or malware already running with standard privileges on the system. HP has released updated software to address the issue.
Affected
- HP One Agent Software versions before 1.87.4769.0 (per the CNA record)
- Specific PC models and SoftPaq numbers: Unknown.
Fixed in
- Version 1.87.4769.0 or later
Workaround
Unknown. No vendor workaround identified. As generic hardening, restrict write access for standard users to directories the agent loads from, and monitor for unexpected files or service/DLL changes there.
Exploitation
- No evidence of exploitation in the wild found.
- No public proof of concept found.
- Not listed as known exploited per the Strix record; the CISA KEV catalogue was not checked directly.
Our recommendation
- Inventory HP PCs with HP One Agent and confirm versions against HP bulletin HPSBHF04150.
- Deploy version 1.87.4769.0 or later with priority.
- Until patched, restrict local write access for standard users to agent directories and monitor for unexpected file or service changes.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- HP Security Bulletin HPSBHF04150 support.hp.com
- VulDB CVE-2026-91093 vuldb.com
- VulDB CVE-2026-91093 vulnerability details vuldb.com
- Strix CVE-2026-91093 www.strix.ai
- threatint CVE-2026-91093 cve.threatint.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 10:12.
Original description (NVD)
A potential security vulnerability has been identified in HP One Agent for certain HP PC products, which might allow for escalation of privilege and/or arbitrary code execution. HP is releasing software updates to mitigate the potential vulnerability.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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