Evidence used
- No CISA KEV confirmation is currently recorded.
- EPSS is 0.34% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-23598High confidence
Unauthenticated Information Disclosure in application API allows sensitive system information exposure
Hewlett Packard Enterprise (HPE) · HPE Aruba Networking Private 5G Core
6.5MediumCVSS 3.1
Scheduled
Patch availableMedium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityMedium→Operational priority:Medium, unchanged from published severity.unchanged
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) HPE Aruba Networking Private 5G Core 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.
HPESBNW05002 · CSAF 2.0 · revision 1 · finalHPE Aruba NetworkingUnauthenticated Information Disclosure in application API allows sensitive system information exposure
The vendor explicitly identifies these products as affected by this CVE.
- HPE Aruba Networking Private 5G Core
- Summary
- Vulnerabilities in the API error handling of an HPE Aruba Networking 5G Core server API could allow an unauthenticated remote attacker to obtain sensitive information. Successful exploitation could allow an attacker to access details such as user accounts, roles, and system configuration, as well as to gain insight into internal services and workflows, increasing the risk of unauthorized access and elevated privileges when combined with other vulnerabilities.
- Remediation
- To resolve the vulnerabilities described above, it is recommended to upgrade the software to HPE Aruba Networking Private 5G Core 1.25.1.0 and above. The latest version of the product is available for download at https://myenterpriselicense.hpe.com/. HPE Aruba Networking does not evaluate or patch HPE Aruba Networking Private 5G Core Software versions that have reached their End of Support (EoS) milestone. For more information about HPE Aruba Networking Product Lifecycle and versioning policy, please visit: https://www.hpe.com/psnow/doc/4aa5-5978enw?jumpid=in_pdfviewer-psnow.
Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.
Patch available01
What, why and how
Vulnerabilities in the API error handling of an HPE Aruba Networking 5G Core server API could allow an unauthenticated remote attacker to obtain sensitive information. Successful exploitation could allow an attacker to access details such as user accounts, roles, and system configuration, as well as to gain insight into internal services and workflows, increasing the risk of unauthorized access and elevated privileges when combined with other vulnerabilities.
What
Vulnerabilities in the API error handling of an HPE Aruba Networking 5G Core server API could allow an unauthenticated remote attacker to obtain sensitive information. Successful exploitation could allow an attacker to access details such as user accounts, roles, and system configuration, as well as to gain insight into internal services and workflows, increasing the risk of unauthorized access and elevated privileges when combined with other vulnerabilities.
Why
The product generates an error message that includes sensitive information about its environment, users, or associated data.
How
An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may gain additional privileges.
What
Vulnerabilities in the API error handling of an HPE Aruba Networking 5G Core server API could allow an unauthenticated remote attacker to obtain sensitive information. Successful exploitation could allow an attacker to access details such as user accounts, roles, and system configuration, as well as to gain insight into internal services and workflows, increasing the risk of unauthorized access and elevated privileges when combined with other vulnerabilities.
Why
The product generates an error message that includes sensitive information about its environment, users, or associated data.
How
An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may gain additional privileges.
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
- an adjacent network → Generation of Error Message Containing Sensitive Information → gain additional privileges
- Attack surface
- Adjacent
- Privileges required
- None: unauthenticated exploitation is possible
- 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-209 ↗
CWE-209: Generation of Error Message Containing Sensitive Information. The product generates an error message that includes sensitive information about its environment, users, or associated data.
- CVSS vector
?
CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity. CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCommon Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing 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.
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 resolve the vulnerabilities described above, it is recommended to upgrade the software to HPE Aruba Networking Private 5G Core 1.25.1.0 and above. The latest version of the product is available for download at https://myenterpriselicense.hpe.com/. HPE Aruba Networking does not evaluate or patch HPE Aruba Networking Private 5G Core Software versions that have reached their End of Support (EoS) milestone. For more information about HPE Aruba Networking Product Lifecycle and versioning policy, please visit: https://www.hpe.com/psnow/doc/4aa5-5978enw?jumpid=in_pdfviewer-psnow.
- Workaround
- No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04
Evidence and provenance
Published 17 Feb 2026 · Last source change 27 Feb 2026, 14:19 UTC · CWE-209 · Generation of Error Message Containing Sensitive Information
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-2026-7837
Product sourceVendor CSAF · HPE Aruba Networking
Remediation sourceVendor CSAF · HPE Aruba 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 Aruba Networking ↗
- Before
- 1.24.3.0 ≤ 1.24.3.4 · 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
- 1.24.3.0 ≤ 1.24.3.4 · Fixed: To resolve the vulnerabilities described above, it is recommended to upgrade the software to HPE Aruba Networking Private 5G Core 1.25.1.0 and above. The latest version of the product is available for download at https://myenterpriselicense.hpe.com/. HPE Aruba Networking does not evaluate or patch HPE Aruba Networking Private 5G Core Software versions that have reached their End of Support (EoS) milestone. For more information about HPE Aruba Networking Product Lifecycle and versioning policy, please visit: https://www.hpe.com/psnow/doc/4aa5-5978enw?jumpid=in_pdfviewer-psnow.
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.