Stack-based Buffer OverflowWeakness · CWE-121

CVE-2024-26304

CRITICAL · 9.8 CVSS v3.1 Published 2024-05-01
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges 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
There is a buffer overflow vulnerability in the underlying L2/L3 Management service that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba's access point management protocol) UDP port (8211). Successful exploitation of this vulnerability results in the ability to execute arbitrary code as a privileged user 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

A buffer overflow vulnerability in Aruba's L2/L3 Management service (PAPI protocol on UDP port 8211) allows unauthenticated attackers to execute arbitrary code as a privileged user by sending specially crafted packets to the PAPI UDP port.

MitigationRestrict network access to UDP port 8211 via firewall rules or network segmentation, and apply vendor-supplied patches when available.

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

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
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/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. Confirm Aruba device with L2/L3 Management service
    Identify the device model and confirm it is an Aruba product that supports the L2/L3 Management service (PAPI protocol). This typically applies to Aruba switches, controllers, or access points with management capabilities.
    Affected if The device is an Aruba product with L2/L3 Management service enabled
  2. Verify UDP port 8211 is listening
    Run a port scan or check open ports on the device to confirm UDP port 8211 (PAPI) is in listening state. Use command: 'netstat -an | grep 8211' or 'nmap -sU -p 8211 <device-ip>'
    Affected if UDP port 8211 is open and accepting packets
  3. Check installed firmware version
    Retrieve the current firmware/software version from the Aruba device (via CLI 'show version', web UI, or SNMP). Compare this version against Aruba's official list of affected versions for CVE-2024-26304.
    Affected if The installed version matches one listed as affected in Aruba's security advisory
  4. Assess network exposure of PAPI service
    Verify if UDP port 8211 is reachable from untrusted networks. Check firewall rules, ACLs, or network segmentation that may permit external access to port 8211.
    Affected if UDP port 8211 is accessible from untrusted or external networks without proper filtering

A user is affected if they have an Aruba device running a firmware version that matches CVE-2024-26304's affected list, with UDP port 8211 (PAPI) exposed to network 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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Restrict network access to UDP port 8211 via firewall rules or network segmentation, and apply vendor-supplied patches when available.

Have this fixed Scoped from the published advisory
  • Consultation8.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA4.0 h
30.0 hours of engineering $5,380
Get help mitigating

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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-26304 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2024-26304 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data