Evidence used
- No CISA KEV confirmation is currently recorded.
- EPSS is 0.56% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-23820High confidence
Inconsistent input filtering allows Authenticated Command Injection in AOS-8 Instant and AOS-10 CLI
Hewlett Packard Enterprise (HPE) · ArubaOS (AOS)
7.2HighCVSS 3.1
Within 7 days
Patch availableHigh technical severity; prioritise exposed affected systems while verifying vendor guidance.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityHigh→Operational priority:High, unchanged from published severity.unchanged
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
- Confirm that the asset runs Hewlett Packard Enterprise (HPE) ArubaOS (AOS) and falls inside the recorded affected range.
- Verify the installed build against the product-specific fixed version after deployment.
- Validate exposure, authentication requirements and compensating controls in the actual environment.
- Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Direct vendor intelligence
1 currentAuthoritative 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.
HPESBNW05049 · CSAF 2.0 · revision 1 · finalHPE NetworkingInconsistent input filtering allows Authenticated Command Injection in AOS-8 Instant and AOS-10 CLI
The vendor explicitly identifies these products as affected by this CVE.
- AOS-10
- AOS-8
- Summary
- A vulnerability in the command line interface of Access Points running AOS-10 and AOS-8 Instant could allow an authenticated remote attacker to execute system commands in a restricted shell environment. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system.
- Remediation
- To address the vulnerabilities described above in the affected software branches, upgrade HPE Aruba Networking AOS-10 AP and AOS-8 Instant software to one of the following versions (as applicable): - AOS-10 AP 10.8.x.x: 10.8.0.1 and above - AOS-10 AP 10.7.x.x: 10.7.2.3 and above - AOS-10 AP 10.4.x.x: 10.4.1.11 and above - AOS-8 Instant 8.13.x.x: 8.13.1.2 and above - AOS-8 Instant 8.12.x.x: 8.12.0.7 and above - AOS-8 Instant 8.10.x.x: 8.10.0.22 and above
High technical severity; prioritise exposed affected systems while verifying vendor guidance.
Patch available01
What, why and how
A vulnerability in the command line interface of Access Points running AOS-10 and AOS-8 Instant could allow an authenticated remote attacker to execute system commands in a restricted shell environment. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system.
What
A vulnerability in the command line interface of Access Points running AOS-10 and AOS-8 Instant could allow an authenticated remote attacker to execute system commands in a restricted shell environment. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system.
Why
Untrusted input is incorporated into an operating-system command without safe parameter handling.
How
An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may execute code or commands in the affected security context.
What
A vulnerability in the command line interface of Access Points running AOS-10 and AOS-8 Instant could allow an authenticated remote attacker to execute system commands in a restricted shell environment. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system.
Why
Untrusted input is incorporated into an operating-system command without safe parameter handling.
How
An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may execute code or commands in the affected security context.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation No confirmed evidence
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.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 None recorded
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.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 → Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') → execute code or commands in the affected security context
- 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: a standard category for the underlying weakness. - CWE-78 ↗
CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'). The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
- 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:H/I:H/A:HCommon 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.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.- Post-exploitation / living off the land
- After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
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
- Action
- To address the vulnerabilities described above in the affected software branches, upgrade HPE Aruba Networking AOS-10 AP and AOS-8 Instant software to one of the following versions (as applicable): - AOS-10 AP 10.8.x.x: 10.8.0.1 and above - AOS-10 AP 10.7.x.x: 10.7.2.3 and above - AOS-10 AP 10.4.x.x: 10.4.1.11 and above - AOS-8 Instant 8.13.x.x: 8.13.1.2 and above - AOS-8 Instant 8.12.x.x: 8.12.0.7 and above - AOS-8 Instant 8.10.x.x: 8.10.0.22 and above
- 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 12 May 2026 · Last source change 13 May 2026, 03:58 UTC · CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-08-14
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2026-29736
Product sourceVendor CSAF · HPE Networking
Remediation sourceVendor CSAF · HPE Networking
CWE sourceCISA ADP
NVD statusNVD enriched
Core structured fields are present and their contributing authorities are shown above.
Material change intelligence
View recent updates ↗What changed after publication
- Affected versionsThe structured affected or fixed version information changed.HPE Networking ↗
- Before
- 10.8.0.0; 10.7.0.0 ≤ 10.7.2.2; 10.4.0.0 ≤ 10.4.1.10; 8.13.0.0 ≤ 8.13.1.1; 8.12.0.0 ≤ 8.12.0.6; 8.10.0.0 ≤ 8.10.0.21 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
- After
- 10.8.0.0; 10.7.0.0 ≤ 10.7.2.2; 10.4.0.0 ≤ 10.4.1.10; 8.13.0.0 ≤ 8.13.1.1; 8.12.0.0 ≤ 8.12.0.6; 8.10.0.0 ≤ 8.10.0.21 · Fixed: To address the vulnerabilities described above in the affected software branches, upgrade HPE Aruba Networking AOS-10 AP and AOS-8 Instant software to one of the following versions (as applicable): - AOS-10 AP 10.8.x.x: 10.8.0.1 and above - AOS-10 AP 10.7.x.x: 10.7.2.3 and above - AOS-10 AP 10.4.x.x: 10.4.1.11 and above - AOS-8 Instant 8.13.x.x: 8.13.1.2 and above - AOS-8 Instant 8.12.x.x: 8.12.0.7 and above - AOS-8 Instant 8.10.x.x: 8.10.0.22 and above
- Remediation statusRemediation status changed from Awaiting fix to Patch available.HPE Networking ↗
- Before
- Awaiting fix
- After
- Patch available
CVE published
Fixed release recorded from official guidance
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.