Description
An unauthenticated path traversal vulnerability exists in the PAPI protocol in AOS-8. Successful exploitation of this vulnerability could allow an unauthenticated adjacent attacker to read, modify, and delete files on the underlying operating system.
Published: 2026-10-22
Score: 9.6 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Filesystem Compromise (Read/Write/Deletion)
Action: Immediate Patch
AI Analysis

Impact

An unauthenticated adjacent attacker can exploit a path traversal flaw in the PAPI protocol of AOS‑8. The flaw allows reading, modifying, and deleting files on the underlying operating system. This compromises confidentiality, integrity, and availability of critical system files and could pave the way to further attacks, such as arbitrary code execution. The weakness lies in improper path validation and handling.

Affected Systems

The vulnerability affects Hewlett Packard Enterprise devices running AOS‑8. No specific versions are listed in the CNA data, so all current and legacy AOS‑8 deployments are potentially impacted.

Risk and Exploitability

The CVSS score of 9.6 indicates a critical severity. The EPSS score, reported as < 1 %, reflects a very low but nonzero probability of exploitation in the wild. Because the flaw is unauthenticated, attackers only require network or local access to the vulnerable component. The lack of a CISA KEV listing does not reduce the risk. If the affected services are exposed to external networks, the potential for widespread exploitation remains high, so administrators should treat this as a top‑priority threat.

Generated by OpenCVE AI on October 23, 2026 at 23:50 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the latest HPE security update for AOS‑8 as soon as it becomes available.
  • Restrict network exposure of the vulnerable PAPI component and enforce strict firewall rules to block unauthenticated access.
  • Implement strict file‑system permissions and enable logging/auditing to detect unauthorized file modifications.

Generated by OpenCVE AI on October 23, 2026 at 23:50 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 30 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 26 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Hpe
Hpe aos
Vendors & Products Hpe
Hpe aos

Sat, 24 Oct 2026 00:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-22

Fri, 23 Oct 2026 22:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-22

Fri, 23 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Description No description provided An unauthenticated path traversal vulnerability exists in the PAPI protocol in AOS-8. Successful exploitation of this vulnerability could allow an unauthenticated adjacent attacker to read, modify, and delete files on the underlying operating system.

Fri, 23 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
CWE-22

Fri, 23 Oct 2026 00:45:00 +0000

Type Values Removed Values Added
Description No description provided
Title Unauthenticated Adjacent Path Traversal Vulnerability leads to Filesystem Compromise in AOS-8
References
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: hpe

Published:

Updated: 2026-10-30T19:07:54.612Z

Reserved: 2026-08-25T14:48:06.469Z

Link: CVE-2026-79866

cve-icon Vulnrichment

Updated: 2026-10-30T19:07:35.505Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-22T19:17:58.960

Modified: 2026-10-30T19:19:13.267

Link: CVE-2026-79866

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T19:25:21Z

Weaknesses
  • CWE-20

    Improper Input Validation

  • CWE-22

    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')