HPE Aruba Networking Wireless Operating System…: Stack-based Buffer Overflow
CVE-2026-44859 is a high-severity stack-based buffer overflow vulnerability in HPE Aruba Networking Wireless Operating System (AOS) from Hewlett Packard Enterprise, with a CVSS 3.1 base score of 7.2 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. Affected HPE Aruba Networking Wireless Operating System (AOS) versions: 8.13.0.0 through 8.13.1.1; 8.12.0.0 through 8.12.0.6; 8.10.0.0 through 8.10.0.21, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.36% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Arubaos to 8.10.0.22 or 8.12.0.7 or 8.13.1.2 or 10.4.1.11, whichever matches your release line, or a later version.
- Read the advisory on support.hpe.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Hewlett Packard Enterprise | HPE Aruba Networking Wireless Operating System (AOS) | 8.13.0.0 through 8.13.1.1; 8.12.0.0 through 8.12.0.6; 8.10.0.0 through 8.10.0.21; 10.7.0.0 through 10.7.2.2; 10.8.0.0; 10.4.0.0 through 10.4.1.10 | Not stated |
| Aruba Networks | Arubaos | 6.5.4.0 up to, but not including, 8.10.0.22; 8.11.0.0 up to, but not including, 8.12.0.7; 8.13.0.0 up to, but not including, 8.13.1.2; 10.4.0.0 up to, but not including, 10.4.1.11; 10.5.0.0 up to, but not including, 10.7.2.3 | 8.10.0.22, 8.12.0.7, 8.13.1.2, 10.4.1.11, 10.7.2.3 |
| Aruba Networks | Sd-wan | 8.6.0.4-2.2.0.0 through 8.6.0.4-2.2.0.7; 8.7.0.0-2.3.0.0 through 8.7.0.0-2.3.0.9 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- HighAdministrator-level access is required first.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (hpe.com).
Official description
Stack-based buffer overflow vulnerabilities exist in several underlying management service components accessed through the command-line interface of the AOS-8 and AOS-10 Operating Systems. An authenticated attacker with administrative privileges could exploit these vulnerabilities by sending specially crafted requests to the affected services. Successful exploitation could allow the attacker to execute arbitrary code with elevated privileges on the underlying operating system.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Stack-based Buffer Overflow
The product writes past the end of a buffer that was allocated on the stack.
How developers prevent this class of flaw
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking. D3-SFCV (Stack Frame Canary Validation) from D3FEND discusses canary-based detection in detail.
- Use an abstraction library to abstract away risky APIs. Not a complete solution.
- Implement and perform bounds checking on input.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in HPE Aruba Networking Wireless Operating System (AOS)
- 8.8 High severity
- 7.2 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
Recent Stack-based Buffer Overflow vulnerabilities
- 9.8 Critical severity
- 7.2 High severity
- 7.2 High severity
- 7.2 High severity
- 7.2 High severity
- 7.8 High severity
Spotted an error? Tell us.