How severe is CVE-2026-23818?

CVE-2026-23818 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-23818 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-23818?

CVE-2026-23818 affects Hpe Aruba Networking Private 5g Core. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-23818?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-23818 have an EU (EUVD) identifier?

Yes. CVE-2026-23818 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19600.

When was CVE-2026-23818 published?

CVE-2026-23818 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2026-23818

CVE-2026-23818 is a high-severity vulnerability in Hpe Aruba Networking Private 5g Core with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19600
Weakness: CWE-601
Affected product: Hpe Aruba Networking Private 5g Core
Published: 2026-04-07
Last modified: 2026-06-17

Description

A vulnerability has been identified in the graphical user interface (GUI) of HPE Aruba Networking Private 5G Core On-Prem that could allow an attacker to abuse an open redirect vulnerability in the login flow using a crafted URL. Successful exploitation may redirect an authenticated user to an attacker-controlled server hosting a spoofed login page prompting the unsuspecting victim to give away their credentials, which could then be captured by the attacker, before being redirected back to the legitimate login page.

Frequently asked questions

What is CVE-2026-23818?: A vulnerability has been identified in the graphical user interface (GUI) of HPE Aruba Networking Private 5G Core On-Prem that could allow an attacker to abuse an open redirect vulnerability in the login flow using a crafted URL. Successful exploitation may redirect an authenticated user to an attacker-controlled server hosting a spoofed login page prompting the unsuspecting victim to give away their credentials, which could then be captured by the attacker, before being redirected back to the legitimate login page.
How severe is CVE-2026-23818?: CVE-2026-23818 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-23818 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-23818?: CVE-2026-23818 affects Hpe Aruba Networking Private 5g Core. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-23818?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-23818 have an EU (EUVD) identifier?: Yes. CVE-2026-23818 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19600.
When was CVE-2026-23818 published?: CVE-2026-23818 was published on 2026-04-07 and last updated on 2026-06-17.

References

https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05032en_us&docLocale=en_US

Affected products (1)

cpe:2.3:a:hpe:aruba_networking_private_5g_core:*:*:*:*:*:*:*:*

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CVE-2024-22891 — Critical (CVSS 9.8): Nteract v.0.28.0 was discovered to contain a remote code execution (RCE) vulnerability via the Markdown link.

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