Description
Uncontrolled Format string vulnerabilities exist in the affected interface of HPE Networking Instant ON APs that could allow an unauthenticated remote attacker to run arbitrary commands on the underlying host. Successful exploitation could result in a Denial-of-service or potential remote code execution.
Published: 2026-09-29
Score: 9.8 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Update
AI Analysis

Impact

The vulnerability involves uncontrolled format string handling in the HPE Networking Instant ON APs interface. An unauthenticated remote attacker can supply crafted input that, when interpreted as a format string, causes the system to execute arbitrary commands on the host. This can lead to full remote code execution and also potentially crash the device, resulting in denial of service. The weakness aligns with input processing that fails to validate or escape format string syntax.

Affected Systems

Affected systems are Hewlett Packard Enterprise Instant ON Access Points. The vulnerability exists in the interface layer of these APs; specific firmware or model details are not provided in the CVE record but the impact applies to all installed Instant ON APs referenced by Hewlett Packard Enterprise.

Risk and Exploitability

The CVSS score of 9.8 indicates critical severity. The EPSS score is not available, so the current likelihood of exploitation cannot be quantified from this data; however the lack of a known KEV listing does not mitigate the risk because the vulnerability permits unauthenticated remote code execution. The attack vector would likely be over the network through the affected interface, requiring no authentication. An attacker could send a request with a malicious format string to trigger the exploit.

Generated by OpenCVE AI on September 29, 2026 at 21:50 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update the AP firmware to the latest release that contains the format string fix, following HPE's support documentation.
  • If a firmware update cannot be performed immediately, isolate the AP interface by applying network segmentation or firewall rules to block unauthenticated traffic from untrusted networks.
  • Enable and monitor AP logs for anomalous format string patterns or unexpected command execution attempts to detect active exploitation.

Generated by OpenCVE AI on September 29, 2026 at 21:50 UTC.

Tracking

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Advisories

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History

Wed, 30 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 30 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Hewlett Packard Enterprise (hpe)
Hewlett Packard Enterprise (hpe) instant On
Vendors & Products Hewlett Packard Enterprise (hpe)
Hewlett Packard Enterprise (hpe) instant On

Tue, 29 Sep 2026 22:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-134
CWE-78

Tue, 29 Sep 2026 19:45:00 +0000

Type Values Removed Values Added
Description Uncontrolled Format string vulnerabilities exist in the affected interface of HPE Networking Instant ON APs that could allow an unauthenticated remote attacker to run arbitrary commands on the underlying host. Successful exploitation could result in a Denial-of-service or potential remote code execution.
Title Uncontrolled Format String Vulnerabilities lead to Remote Code Execution or Denial-of-Service in HPE Networking Instant ON APs
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

Hewlett Packard Enterprise (hpe) Instant On
cve-icon MITRE

Status: PUBLISHED

Assigner: hpe

Published:

Updated: 2026-10-01T03:55:31.535Z

Reserved: 2026-08-19T16:12:51.872Z

Link: CVE-2026-76722

cve-icon Vulnrichment

Updated: 2026-09-30T18:28:06.240Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-29T20:17:24.207

Modified: 2026-10-01T04:18:19.447

Link: CVE-2026-76722

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T20:39:25Z

Weaknesses
  • CWE-134

    Use of Externally-Controlled Format String

  • CWE-78

    Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')