Evidence used
- No CISA KEV confirmation is currently recorded.
- Exploitation requires an existing local or physical foothold with privileges.
- EPSS is 0.12% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-73776High confidence
Authenticated Signature Verification Bypass Leading to Arbitrary Code Execution in AOS-CX
Hewlett Packard Enterprise (HPE) · AOS-CX
7.9HighCVSS 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:Medium, lowered one band.downgradedsince 3 Sep 2026
Compensating controls
- Validate the affected product branch and deploy the verified fixed release.
- Restrict local access and enforce least privilege on affected hosts.
- Monitor vendor guidance and exploitation sources for a material change.
Verification
- Confirm that the asset runs Hewlett Packard Enterprise (HPE) AOS-CX 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.
HPESBNW05134 · CSAF 2.0 · revision 1 · finalHPE NetworkingAuthenticated Signature Verification Bypass Leading to Arbitrary Code Execution in AOS-CX
The vendor explicitly identifies these products as affected by this CVE.
- HPE Networking AOS-CX
- HPE Aruba Networking AOS-CX
- Summary
- A signature verification bypass vulnerability exists in the command line interface of AOS-CX. Successful exploitation could allow an authenticated malicious actor with administrative privileges to execute arbitrary code on the underlying operating system, when certain pre-conditions outside of the attacker’s control are met.
- Remediation
- In order to address the vulnerabilities described in the Details Section, HPE Networking recommends upgrading the HPE Aruba Networking AOS-CX software to one of the following versions (as applicable): - AOS-CX 10.10.1181 and above - AOS-CX 10.13.1190 and above - AOS-CX 10.16.1060 and above - AOS-CX 10.17.1030 and above - AOS-CX 10.18.1002 and above Software versions with resolution/fixes for the disclosed vulnerabilities can be downloaded from the HPE Networking Support Portal at: https://networkingsupport.hpe.com/home/. Product software versions that have reached End of Maintenance (EoM) are presumed to be affected by the vulnerabilities unless explicitly stated otherwise, and are not completely addressed by this security advisory. For deployments running software versions that are past End of Support (EoS), HPE Networking has not assessed exposure to the vulnerabilities referenced in this advisory. As a result, such installations should be considered potentially impacted by the listed CVE. Customers are strongly encouraged to upgrade to a supported software release to ensure proper evaluation and remediation.
High technical severity; prioritise exposed affected systems while verifying vendor guidance.
Patch available01
What, why and how
A signature verification bypass vulnerability exists in the command line interface of AOS-CX. Successful exploitation could allow an authenticated malicious actor with administrative privileges to execute arbitrary code on the underlying operating system, when certain pre-conditions outside of the attacker’s control are met.
What
A signature verification bypass vulnerability exists in the command line interface of AOS-CX. Successful exploitation could allow an authenticated malicious actor with administrative privileges to execute arbitrary code on the underlying operating system, when certain pre-conditions outside of the attacker’s control are met.
Why
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
How
An attacker operating through local access may attempt exploitation with elevated privileges. If successful, the issue may execute code or commands in the affected security context.
What
A signature verification bypass vulnerability exists in the command line interface of AOS-CX. Successful exploitation could allow an authenticated malicious actor with administrative privileges to execute arbitrary code on the underlying operating system, when certain pre-conditions outside of the attacker’s control are met.
Why
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
How
An attacker operating through local access 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
- local access → Improper Verification of Cryptographic Signature → execute code or commands in the affected security context
- Attack surface
- Local
- Privileges required
- High: elevated access is required
- User interaction
- None
- Attack complexity
- Low: no specialised conditions are recorded
- Security boundary
- Changed: exploitation can affect a different security authority
- Weakness
?
CWE means Common Weakness Enumeration: a standard category for the underlying weakness. - CWE-347 ↗
CWE-347: Improper Verification of Cryptographic Signature. The product does not verify, or incorrectly verifies, the cryptographic signature for data.
- CVSS vector
?
CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity. CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:NCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.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.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.ANoneAvailability impact: No direct loss is represented by this metric.- 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
- In order to address the vulnerabilities described in the Details Section, HPE Networking recommends upgrading the HPE Aruba Networking AOS-CX software to one of the following versions (as applicable): - AOS-CX 10.10.1181 and above - AOS-CX 10.13.1190 and above - AOS-CX 10.16.1060 and above - AOS-CX 10.17.1030 and above - AOS-CX 10.18.1002 and above Software versions with resolution/fixes for the disclosed vulnerabilities can be downloaded from the HPE Networking Support Portal at: https://networkingsupport.hpe.com/home/. Product software versions that have reached End of Maintenance (EoM) are presumed to be affected by the vulnerabilities unless explicitly stated otherwise, and are not completely addressed by this security advisory. For deployments running software versions that are past End of Support (EoS), HPE Networking has not assessed exposure to the vulnerabilities referenced in this advisory. As a result, such installations should be considered potentially impacted by the listed CVE. Customers are strongly encouraged to upgrade to a supported software release to ensure proper evaluation and remediation.
- Workaround
- No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04
Evidence and provenance
Published 1 Sept 2026 · Last source change 3 Sept 2026, 16:32 UTC · CWE-347 · Improper Verification of Cryptographic Signature
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-09-02
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2026-69639
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
- BlackTree coverageBlackTree article coverage changed from no BlackTree article to 1 BlackTree article.BlackTree editorial ↗
- Before
- no BlackTree article
- After
- 1 BlackTree article
- Vendor guidanceAuthoritative vendor guidance changed: added patch: support.hpe.com/docDisplay?docId=hpesbnw05134en_us&docLocale=en_US; added remediation: support.hpe.com/docDisplay?docId=hpesbnw05134en_us&docLocale=en_US.security-alert@hpe.com ↗
- Before
- no authoritative guidance recorded
- After
- patch: support.hpe.com/docDisplay?docId=hpesbnw05134en_us&docLocale=en_US · remediation: support.hpe.com/docDisplay?docId=hpesbnw05134en_us&docLocale=en_US
- Affected versionsThe structured affected or fixed version information changed.CNA ↗
- Before
- 10.18.0000 ≤ 10.18.0001; 10.17.0000 ≤ 10.17.1021; 10.16.0000 ≤ 10.16.1051; 10.13.0000 ≤ 10.13.1180; 10.10.0000 ≤ 10.10.1180 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
- After
- 10.18.0000 ≤ 10.18.0001; 10.17.0000 ≤ 10.17.1021; 10.16.0000 ≤ 10.16.1051; 10.13.0000 ≤ 10.13.1180; 10.10.0000 ≤ 10.10.1180 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
- Remediation statusRemediation status changed from Awaiting fix to Patch available.security-alert@hpe.com ↗
- Before
- Awaiting fix
- After
- Patch available
- ENISA EUVD mappingEUVD-2026-69639 was added to the official ENISA EUVD mapping for this CVE.ENISA EUVD ↗
- Before
- not recorded
- After
- {"euvdId":"EUVD-2026-69639"}
- Catalogue recordCVE added to the BlackTree catalogue.CNA ↗
- Affected versionsThe structured affected or fixed version information changed.HPE Networking ↗
- Before
- 10.18.0000 ≤ 10.18.0001; 10.17.0000 ≤ 10.17.1021; 10.16.0000 ≤ 10.16.1051; 10.13.0000 ≤ 10.13.1180; 10.10.0000 ≤ 10.10.1180 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
- After
- 10.18.0000 ≤ 10.18.0001; 10.17.0000 ≤ 10.17.1021; 10.16.0000 ≤ 10.16.1051; 10.13.0000 ≤ 10.13.1180; 10.10.0000 ≤ 10.10.1180 · Fixed: In order to address the vulnerabilities described in the Details Section, HPE Networking recommends upgrading the HPE Aruba Networking AOS-CX software to one of the following versions (as applicable): - AOS-CX 10.10.1181 and above - AOS-CX 10.13.1190 and above - AOS-CX 10.16.1060 and above - AOS-CX 10.17.1030 and above - AOS-CX 10.18.1002 and above Software versions with resolution/fixes for the disclosed vulnerabilities can be downloaded from the HPE Networking Support Portal at: https://networkingsupport.hpe.com/home/. Product software versions that have reached End of Maintenance (EoM) are presumed to be affected by the vulnerabilities unless explicitly stated otherwise, and are not completely addressed by this security advisory. For deployments running software versions that are past End of Support (EoS), HPE Networking has not assessed exposure to the vulnerabilities referenced in this advisory. As a result, such installations should be considered potentially impacted by the listed CVE. Customers are strongly encouraged to upgrade to a supported software release to ensure proper evaluation and remediation.
CVE published
Fixed release or patch reference recorded
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.