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Full vulnerability report · 2024
CVE-2024-26303High confidence

Authenticated Denial of Service Vulnerability in ArubaOS-Switch SSH Daemon

Hewlett Packard Enterprise (HPE) · ArubaOS-S Switch

4.9MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.52% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Hewlett Packard Enterprise (HPE) ArubaOS-S Switch and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
ARUBA-PSA-2024-0003 · CSAF 2.0 · revision 1 · finalHPE Aruba NetworkingAuthenticated Denial of Service Vulnerability in ArubaOS-Switch SSH Daemon
2 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • ArubaOS-S Switch
  • Aruba OS-S Switch
Summary
Authenticated Denial of Service Vulnerability in ArubaOS-Switch SSH Daemon
Remediation
To address the vulnerabilities described above for the affected release branches, it is recommended to upgrade the software to the following versions: - ArubaOS-Switch 16.11.xxxx: KB/WC/YA/YB/YC.16.11.0016 and above. - ArubaOS-Switch 16.10.xxxx: WB.16.10.0025 and above. - ArubaOS-Switch 16.04.xxxx: KA/RA.16.04.0028 and above. Note: 16.10.xxxx:KB/WC/YA/YB/YC will not receive fixes for these vulnerabilities. Upgrading to KB/WC/YA/YB/YC.16.11.0016 and above will address these vulnerabilities. The software versions listed in the Resolution section are the supported branches as of the publication date of this advisory.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2024-23574

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

Authenticated Denial of Service Vulnerability in ArubaOS-Switch SSH Daemon

What

Authenticated Denial of Service Vulnerability in ArubaOS-Switch SSH Daemon

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may disrupt the affected service.

What

Authenticated Denial of Service Vulnerability in ArubaOS-Switch SSH Daemon

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → vulnerable operation → disrupt the affected service
Attack surface
Network
Privileges required
High: elevated access is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration.
CWE not yet assigned
CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRHighPrivileges required: The attacker needs elevated or administrative privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkDenial of service
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2024-0717Aruba ArubaOS: Schwachstelle ermöglicht Denial of Service

Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Aruba ArubaOS und Aruba Switch ausnutzen, um einen Denial of Service Angriff durchzuführen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20240327Security Bulletin 27 Mar 2024

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 27 Mar 2024, published on 27 March 2024. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2024-AVI-0253Vulnérabilité dans Aruba ArubaOS-Switch

Une vulnérabilité a été découverte dans Aruba ArubaOS-Switch. Elle permet à un attaquant de provoquer un déni de service à distance.

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
ArubaOS-S Switch
Action
To address the vulnerabilities described above for the affected release branches, it is recommended to upgrade the software to the following versions: - ArubaOS-Switch 16.11.xxxx: KB/WC/YA/YB/YC.16.11.0016 and above. - ArubaOS-Switch 16.10.xxxx: WB.16.10.0025 and above. - ArubaOS-Switch 16.04.xxxx: KA/RA.16.04.0028 and above. Note: 16.10.xxxx:KB/WC/YA/YB/YC will not receive fixes for these vulnerabilities. Upgrading to KB/WC/YA/YB/YC.16.11.0016 and above will address these vulnerabilities. The software versions listed in the Resolution section are the supported branches as of the publication date of this advisory.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 26 Mar 2024 · Last source change 31 Oct 2024, 15:11 UTC · CWE not yet assigned

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2024-23574
Product sourceVendor CSAF · HPE Aruba Networking
Remediation sourceVendor CSAF · HPE Aruba Networking
CWE sourceUnavailable
NVD statusNVD not scheduled

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    ArubaOS-Switch 16.11.xxxx: KB/WC/YA/YB/YC.16.11.0015 and below; ArubaOS-Switch 16.10.xxxx: KB/WC/YA/YB/YC - All versions. ; ArubaOS-Switch 16.10.xxxx: WB.16.10.24 and below. ; ArubaOS-Switch 16.09.xxxx: All versions. ; ArubaOS-Switch 16.08.xxxx: All versions.; ArubaOS-Switch 16.07.xxxx: All versions; ArubaOS-Switch 16.06.xxxx: All versions; ArubaOS-Switch 16.05.xxxx: All versions · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    ArubaOS-Switch 16.11.xxxx: KB/WC/YA/YB/YC.16.11.0015 and below; ArubaOS-Switch 16.10.xxxx: KB/WC/YA/YB/YC - All versions. ; ArubaOS-Switch 16.10.xxxx: WB.16.10.24 and below. ; ArubaOS-Switch 16.09.xxxx: All versions. ; ArubaOS-Switch 16.08.xxxx: All versions.; ArubaOS-Switch 16.07.xxxx: All versions; ArubaOS-Switch 16.06.xxxx: All versions; ArubaOS-Switch 16.05.xxxx: All versions · Fixed: To address the vulnerabilities described above for the affected release branches, it is recommended to upgrade the software to the following versions: - ArubaOS-Switch 16.11.xxxx: KB/WC/YA/YB/YC.16.11.0016 and above. - ArubaOS-Switch 16.10.xxxx: WB.16.10.0025 and above. - ArubaOS-Switch 16.04.xxxx: KA/RA.16.04.0028 and above. Note: 16.10.xxxx:KB/WC/YA/YB/YC will not receive fixes for these vulnerabilities. Upgrading to KB/WC/YA/YB/YC.16.11.0016 and above will address these vulnerabilities. The software versions listed in the Resolution section are the supported branches as of the publication date of this advisory.
    HPE Aruba Networking ↗
  2. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    HPE Aruba Networking ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2024-23574↗HPE Aruba Networking security advisory↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2024-26303 · cve.blacktree.nl