How severe is CVE-2024-28021?

CVE-2024-28021 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2024-28021 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-28021?

CVE-2024-28021 primarily affects Hitachienergy Foxman-un. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-28021?

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-2024-28021 have an EU (EUVD) identifier?

Yes. CVE-2024-28021 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-25195.

When was CVE-2024-28021 published?

CVE-2024-28021 was published on 2024-06-11 and last updated on 2026-06-17.

CVE-2024-28021

CVE-2024-28021 is a high-severity vulnerability in Hitachienergy Foxman-un with a CVSS 3.x base score of 7.4. 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-295.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-25195
Weakness: CWE-295
Affected product: Hitachienergy Foxman-un
Published: 2024-06-11
Last modified: 2026-06-17

Description

A vulnerability exists in the FOXMAN-UN/UNEM server that affects the message queueing mechanism’s certificate validation. If exploited an attacker could spoof a trusted entity causing a loss of confidentiality and integrity.

Frequently asked questions

What is CVE-2024-28021?: A vulnerability exists in the FOXMAN-UN/UNEM server that affects the message queueing mechanism’s certificate validation. If exploited an attacker could spoof a trusted entity causing a loss of confidentiality and integrity.
How severe is CVE-2024-28021?: CVE-2024-28021 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2024-28021 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-28021?: CVE-2024-28021 primarily affects Hitachienergy Foxman-un. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-28021?: 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-2024-28021 have an EU (EUVD) identifier?: Yes. CVE-2024-28021 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-25195.
When was CVE-2024-28021 published?: CVE-2024-28021 was published on 2024-06-11 and last updated on 2026-06-17.

References

Affected products (8)

cpe:2.3:a:hitachienergy:foxman-un:r15b:pc4:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:foxman-un:r16b:pc2:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:foxman_un:r15a:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:foxman_un:r16a:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:unem:r15a:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:unem:r15b:pc4:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:unem:r16a:*:*:*:*:*:*:*
cpe:2.3:a:hitachienergy:unem:r16b:pc2:*:*:*:*:*:*

More vulnerabilities in Hitachienergy Foxman-un

CVE-2024-2013 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in the FOXMAN-UN/UNEM server / API Gateway component that if exploited…
CVE-2024-2012 — Critical (CVSS 9.1): vulnerability exists in the FOXMAN-UN/UNEM server / API Gateway that if exploited an attacker could use to allow…
CVE-2024-2011 — High (CVSS 8.6): A heap-based buffer overflow vulnerability exists in the FOXMAN-UN/UNEM that if exploited will generally lead to a…
CVE-2022-3929 — High (CVSS 8.3): Communication between the client and the server application of the affected products is partially done using CORBA…
CVE-2024-28020 — High (CVSS 8.0): A user/password reuse vulnerability exists in the FOXMAN-UN/UNEM application and server management. If exploited a…
CVE-2022-3927 — High (CVSS 8.0): The affected products store both public and private key that are used to sign and protect Custom Parameter Set (CPS)…

All CVEs affecting Hitachienergy Foxman-un →

Other CWE-295 (Improper Certificate Validation) vulnerabilities

CVE-2026-4370 — Critical (CVSS 10.0): A vulnerability was identified in Juju from version 3.2.0 until 3.6.19 and from version 4.0 until 4.0.4, where the…
CVE-2026-30836 — Critical (CVSS 10.0): Step CA is an online certificate authority for secure, automated certificate management for DevOps. Versions 0.30.0-rc6…
CVE-2025-68121 — Critical (CVSS 10.0): During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between…
CVE-2022-20703 — Critical (CVSS 10.0): Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker…
CVE-2021-1471 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms…
CVE-2026-20184 — Critical (CVSS 9.8): A vulnerability in the integration of single sign-on (SSO) with Control Hub in Cisco Webex Services could have allowed…

Browse all CWE-295 (Improper Certificate Validation) vulnerabilities →