Improper certificate validation in Hitachi Energy FOXMAN-UN
Priority LOW 34CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-295.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00268 19th percentileScored 2026-11-07
Fix Fixed FOXMAN-UN (Hitachi Energy): FOXMAN-UN R16B PC3, FOXMAN-UN R15B PC5UNEM (Hitachi Energy): UNEM R16B PC3, UNEM R15B PC5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Hitachi Energy | FOXMAN-UN | FOXMAN-UN R16B PC2; FOXMAN-UN R15B PC4 | FOXMAN-UN R16B PC3, FOXMAN-UN R15B PC5 | Patch available | CNA |
| Hitachi Energy | UNEM | UNEM R16B PC2; UNEM R15B PC4 | UNEM R16B PC3, UNEM R15B PC5 | Patch available | CNA |
- FOXMAN-UN VendorHitachi Energy Affected FOXMAN-UN R16B PC2; FOXMAN-UN R15B PC4 Fixed in FOXMAN-UN R16B PC3, FOXMAN-UN R15B PC5 Patch available CNA
- UNEM VendorHitachi Energy Affected UNEM R16B PC2; UNEM R15B PC4 Fixed in UNEM R16B PC3, UNEM R15B PC5 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hitachienergy:foxman-un:r15b:pc4:*:*:*:*:*:* | r15b pc4 | Vulnerable | Hitachi Energy |
| cpe:2.3:a:hitachienergy:foxman-un:r16b:pc2:*:*:*:*:*:* | r16b pc2 | Vulnerable | Hitachi Energy |
| cpe:2.3:a:hitachienergy:foxman_un:r15a:*:*:*:*:*:*:* | r15a | Vulnerable | Hitachi Energy |
| cpe:2.3:a:hitachienergy:foxman_un:r16a:*:*:*:*:*:*:* | r16a | Vulnerable | Hitachi Energy |
| cpe:2.3:a:hitachienergy:unem:r15a:*:*:*:*:*:*:* | r15a | Vulnerable | Hitachi Energy |
| cpe:2.3:a:hitachienergy:unem:r15b:pc4:*:*:*:*:*:* | r15b pc4 | Vulnerable | Hitachi Energy |
| cpe:2.3:a:hitachienergy:unem:r16a:*:*:*:*:*:*:* | r16a | Vulnerable | Hitachi Energy |
| cpe:2.3:a:hitachienergy:unem:r16b:pc2:*:*:*:*:*:* | r16b pc2 | Vulnerable | Hitachi Energy |
- cpe:2.3:a:hitachienergy:foxman-un:r15b:pc4:*:*:*:*:*:* Versions r15b pc4 Vulnerable ·Hitachi Energy
- cpe:2.3:a:hitachienergy:foxman-un:r16b:pc2:*:*:*:*:*:* Versions r16b pc2 Vulnerable ·Hitachi Energy
- cpe:2.3:a:hitachienergy:foxman_un:r15a:*:*:*:*:*:*:* Versions r15a Vulnerable ·Hitachi Energy
- cpe:2.3:a:hitachienergy:foxman_un:r16a:*:*:*:*:*:*:* Versions r16a Vulnerable ·Hitachi Energy
- cpe:2.3:a:hitachienergy:unem:r15a:*:*:*:*:*:*:* Versions r15a Vulnerable ·Hitachi Energy
- cpe:2.3:a:hitachienergy:unem:r15b:pc4:*:*:*:*:*:* Versions r15b pc4 Vulnerable ·Hitachi Energy
- cpe:2.3:a:hitachienergy:unem:r16a:*:*:*:*:*:*:* Versions r16a Vulnerable ·Hitachi Energy
- cpe:2.3:a:hitachienergy:unem:r16b:pc2:*:*:*:*:*:* Versions r16b pc2 Vulnerable ·Hitachi Energy
Remediation
- Fix · CNA FOXMAN-UN (Hitachi Energy) Fixed in FOXMAN-UN R16B PC3, FOXMAN-UN R15B PC5
- Fix · CNA UNEM (Hitachi Energy) Fixed in UNEM R16B PC3, UNEM R15B PC5
Timeline
- 2026-10-02 Threatist record created from CVE-2024-28021
- 2026-10-03 Alias added: GHSA-qjqw-554m-3g9j
References
More Hitachi Energy Foxman-un vulnerabilities
- TI-2024-01871 Heap-based buffer overflow in Hitachi Energy FOXMAN-UN CVSS 3.1CRITICAL 9.8
- TI-2024-01873 Authentication bypass in Hitachi Energy FOXMAN-UN CVSS 3.1CRITICAL 10.0
- TI-2024-01872 Authentication bypass in Hitachi Energy FOXMAN-UN CVSS 3.1CRITICAL 9.8
- TI-2022-03602 Hard-coded credentials in Hitachi Energy FOXMAN-UN CVSS 3.1CRITICAL 9.8
- TI-2022-03604 Communication between the client and server partially using CORBA over TCP/IP CVSS 3.1CRITICAL 9.8
- TI-2021-17414 Use of default key for encryption CVSS 3.1CRITICAL 9.8
Sources
- CVE-2024-28021 · CVE Program
- CVE-2024-28021 · NVD
- FIRST EPSS
- GHSA-qjqw-554m-3g9j · GitHub Advisory Database · CC BY 4.0
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