CVE-2026-23598 — Unauthenticated Information Disclosure in application API allows sensitive system information exposure
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.
Who exploits it and how urgent it is
A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.
How the score was calculated
- EPSS 0.3% (30-day exploitation probability)+4
- Technical severity (medium)+3
The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.
CISA SSVC assessment CISA
Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.
Remediation
Fixes and mitigations documented by the sources — linked to the original advisory.
- Documented patch — support.hpe.com (NIST National Vulnerability Database)
First 24 hours
Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.
- Identify exposed assets running the affected vendor/product/version combinations (Hewlett Packard Enterprise (HPE) HPE Aruba Networking Private 5G Core, Hpe Aruba Networking Private 5g Core).
- Apply the fixed version or the patch documented under Remediation.
- Search available logs for exploit probes matching the vulnerability class (info disclosure), errors and authentication anomalies.
Affected scope
Vendor, product and versions as the sources word them.
| Vendor | Product | Versions | Status | Source |
|---|---|---|---|---|
| Hewlett Packard Enterprise (HPE) | HPE Aruba Networking Private 5G Core | ≥ 1.24.3.0 and ≤ 1.24.3.4 | Vulnerable | CVE Program (cve.org) e CISA ADP |
| Hpe | Aruba Networking Private 5g Core | ≥ 1.24.3.0 and ≤ 1.24.3.3 | Vulnerable | NIST National Vulnerability Database |
Attack characteristics
The CVSS vector, decoded. It describes the attack, not your exposure to it.
Every base score collected
Sources score independently and may disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Scored by |
|---|---|---|---|---|---|
| 6.5 | CVSS 3.1 | Medium | 2.8 | 3.6 | security-alert@hpe.com via NIST National Vulnerability Database |
| 6.5 | CVSS 3.1 | Medium | 2.8 | 3.6 | nvd@nist.gov via NIST National Vulnerability Database |
| 6.5 | CVSS 3.1 | Medium | — | — | hpe via CVE Program (cve.org) e CISA ADP |
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N (score shown at the top: nvd@nist.gov) Weakness MITRE
Weakness class according to MITRE’s CWE catalog.
EPSS over time FIRST
Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 0.32%
Detection
Read off the CVSS vector and the weakness class. Starting points, not tested rules.
- Look for anomalous data read/export volumes and access to sensitive records.
Timeline
What happened to this CVE, newest first.
- 2026
- Affected products added · hewlett packard enterprise (hpe)/hpe aruba networking private 5g core
- SSVC assessment updated
- Record published
- Fix documented
- CVSS changed · 6.5
- Source status changed · → Analyzed
- Record created in this database
- CVE published
Source activity
Repeated readings are counted rather than listed.
- 1× Official description updated · Oct 13, 2026 – Oct 13, 2026
References
1 on the record
Elsewhere on this site
Related CVEs (same products)
- Critical CVE-2026-23818 Open Redirect Vulnerability in HPE Aruba Networking Private 5G Core On-Prem Apr 7, 2026
- Medium CVE-2026-23597 Unauthenticated Information Disclosure in application API allows sensitive system information exposure Feb 17, 2026
- High CVE-2026-23595 Unauthenticated Authentication Bypass in application API allows unauthorized administrative account creation Feb 17, 2026
- Medium CVE-2026-23596 Unauthenticated Improper Access Control in management API allows unauthorized service disruption Feb 17, 2026
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.
Answered from this record
Text assembled only from the fields above — no additional claims.
What should defenders know first?
CVE-2026-23598 is "Unauthenticated Information Disclosure in application API allows sensitive system information exposure", rated Medium. It affects HPE Aruba Networking Private 5G Core (Hewlett Packard Enterprise (HPE)); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 6.5 describes technical severity. EPSS 0.32% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.
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