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ArubaosOperating system · Arubanetworks

CVE-2026-44857

HIGH · 7.2 CVSS v3.1 Published 2026-05-12
Fix available
A fix is available. Upgrade to 8.10.0.22 / 8.12.0.7 or later.
See remediation →
78/100
Remediation priority · High
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Stack-based buffer overflow vulnerabilities exist in management service components accessed through the CLI of Aruba AOS-8 and AOS-10 operating systems. An authenticated attacker with administrative privileges can send specially crafted requests to trigger the overflow, achieving arbitrary code execution with elevated (root) privileges.

MitigationApply vendor-provided patches or firmware updates for AOS-8 and AOS-10. Restrict administrative access to trusted personnel and monitor for signs of compromise.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
ArubaosOperating system
Affected:>= 6.5.4.0, < 8.10.0.22>= 8.11.0.0, < 8.12.0.7>= 8.13.0.0, < 8.13.1.2>= 10.4.0.0, < 10.4.1.11>= 10.5.0.0, < 10.7.2.3
Sd WanApplication
Affected:>= 8.6.0.4-2.2.0.0, <= 8.6.0.4-2.2.0.7>= 8.7.0.0-2.3.0.0, <= 8.7.0.0-2.3.0.9

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Determine installed AOS version
    Execute 'show version' or 'show system information' via CLI or check the web UI dashboard for the firmware version
    Affected if The displayed version falls within any of these ranges: >= 6.5.4.0 and < 8.10.0.22; >= 8.11.0.0 and < 8.12.0.7; >= 8.13.0.0 and < 8.13.1.2; >= 10.4.0.0 and < 10.4.1.11; >= 10.5.0.0 and < 10.7.2.3
  2. Determine installed SD-WAN version
    Execute 'show version' on SD-WAN appliances or check the management interface for the software build version
    Affected if The version is >= 8.6.0.4-2.2.0.0 and <= 8.6.0.4-2.2.0.7, OR >= 8.7.0.0-2.3.0.0 and <= 8.7.0.0-2.3.0.9
  3. Verify management CLI accessibility
    Confirm that the CLI management service (typically TCP port 22 for SSH or port 443 for web UI) is reachable from network segments outside the trusted administrative zone
    Affected if The CLI management interface is exposed to untrusted or guest network segments
  4. Check for existing administrative sessions
    Use 'show users' or 'show cli sessions' command to list active administrative sessions
    Affected if Unexpected or unauthorized administrative sessions are active

The device is affected if it runs ArubaOS version within the listed ranges or SD-WAN version within the specified builds, and the management CLI is accessible to potential attackers.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 8.10.0.22 / 8.12.0.7 / 8.13.1.2 or later
Fixed in 8.10.0.228.12.0.78.13.1.2
Interim mitigation

Apply vendor-provided patches or firmware updates for AOS-8 and AOS-10. Restrict administrative access to trusted personnel and monitor for signs of compromise.

Recommended fix High confidence

ArubaOS: 8.10.0.22+, 8.12.0.7+, 8.13.1.2+, or 10.4.1.11+ | SD-WAN: 8.6.0.4-2.2.0.8+ or 8.7.0.0-2.3.1.0+

  1. 1. Identify the currently installed ArubaOS or SD-WAN version by running 'show version' or 'show controller-version' on the device CLI.
  2. 2. Determine which version branch your current installation belongs to (6.5.x, 8.10.x, 8.11.x, 8.13.x, 10.4.x for ArubaOS or 8.6.x, 8.7.x for SD-WAN).
  3. 3. For ArubaOS: If running 6.5.4.0 through 8.10.x, upgrade to 8.10.0.22 or later; if running 8.11.x, upgrade to 8.12.0.7 or later; if running 8.13.x, upgrade to 8.13.1.2 or later; if running 10.4.x, upgrade to 10.4.1.11 or later.
  4. 4. For SD-WAN: If running 8.6.0.4-2.2.0.x, upgrade to 8.6.0.4-2.2.0.8 or later; if running 8.7.0.0-2.3.0.x, upgrade to 8.7.0.0-2.3.1.0 or later.
  5. 5. Download the appropriate upgrade image from the HPE Aruba support portal (support.hpe.com).
  6. 6. Back up the current device configuration using 'backup flash' or the WebUI.
  7. 7. Upload the new firmware image to the device using 'copy firmware' or via the WebUI.
  8. 8. Reboot the device into the new firmware image.
Caveat Upgrading across major version branches (e.g., 8.x to 10.x) may require configuration migration and downtime; test thoroughly in a staging environment before production deployment

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Arubaos Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-44857 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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