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CVE-2026-73761: An out-of-bounds read vulnerability exists in the underlying operating system of AOS-CX that could lead to una

28
Routine
MEDIUM 6.5UPGRADE

CVE-2026-73761 is a medium-severity flaw (CVSS 6.5) affecting arubaos-cx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An out-of-bounds read vulnerability exists in the underlying operating system of AOS-CX that could lead to unauthenticated information disclosure by sending a specially crafted packet. Successful exploitation of this vulnerability results in the ability to disclose sensitive information from the underlying operating system.

Why this priority

  • No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score6.5 (Medium)
Attack vectorAdjacent network
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.3% (top 80%)
CISA exploited listNo
WeaknessCWE-125
Published2026-09-01
Last modified2026-09-04
Publisher (CNA): Hewlett Packard Enterprise (HPE) · Vendor: hpe

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Last updated 2026-09-04 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

hpe arubaos-cx UPGRADE
Affected: <= 10.10.1180 · >= 10.13.0000 and <= 10.13.1180 · >= 10.16.0000 and <= 10.16.1051 · >= 10.17.0000 and <= 10.17.1021 · 10.18.0001
Fixed in: newer than 10.17.1021
Safe to downgrade to: a release before 10.13.0000
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-73761?

arubaos-cx: upgrade to newer than 10.17.1021. Exact commands for each OS are on this page.

Is CVE-2026-73761 being exploited?

CVE-2026-73761 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-73761 affect?

CVE-2026-73761 affects arubaos-cx. Severity is medium (CVSS 6.5). An out-of-bounds read vulnerability exists in the underlying operating system of AOS-CX that could lead to unauthenticated information disclosure by sending a specially crafted packet. Successful exploitation of this vulnerability results i

How urgent is CVE-2026-73761?

Priority 28/100. No elevated risk signals yet.

Related CVEs

References

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