NULL pointer dereference in Hitachi Energy RTU500
Priority LOW 30CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-476.
Summary
A vulnerability exists in RTU500 IEC 60870-4-104 controlled station functionality, that allows an authenticated and authorized attacker to perform a CMU restart. The vulnerability can be triggered if certificates are updated while in use on active connections. The affected CMU will automatically recover itself if an attacker successfully exploits this vulnerability.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00261 18th percentileScored 2026-11-07
Fix Fixed RTU500 (Hitachi Energy): 13.5.4, 13.6.2, 13.7.6
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 | RTU500 | 13.4.1 – 13.4.4; 13.5.1 – 13.5.3; 13.5.3; 13.6.1; 13.7.1 | 13.5.4, 13.6.2, 13.7.6 | Patch available | CNA |
- RTU500 VendorHitachi Energy Affected 13.4.1 – 13.4.4; 13.5.1 – 13.5.3; 13.5.3; 13.6.1; 13.7.1 Fixed in 13.5.4, 13.6.2, 13.7.6 Patch available CNA
Remediation
- Fix · CNA RTU500 (Hitachi Energy) Fixed in 13.5.4, 13.6.2, 13.7.6
Timeline
- 2026-10-02 Threatist record created from CVE-2024-11499
- 2026-10-03 Alias added: GHSA-h77r-2p45-qp9h
References
More Hitachi Energy vulnerabilities
- TI-2019-03985 ABB MicroSCADA Pro SYS600 Missing Authentication for Critical Function CVSS 3.1CRITICAL 9.8
- TI-2018-10635 Improper authentication in ICS-CERT ABB eSOMS CVSS 3.0CRITICAL 9.8
- TI-2024-01871 Heap-based buffer overflow in Hitachi Energy FOXMAN-UN CVSS 3.1CRITICAL 9.8
- TI-2026-07105 Path traversal in Hitachi Energy RTU500 series CMU firmware CVSS 3.1CRITICAL 9.1
- TI-2019-13270 Path traversal in Relion 670 Series CVSS 3.1CRITICAL 10.0
- TI-2026-07104 Missing authentication in Hitachi Energy RTU500 series CMU firmware CVSS 3.1CRITICAL 9.1
Sources
- CVE-2024-11499 · CVE Program
- CVE-2024-11499 · NVD
- FIRST EPSS
- GHSA-h77r-2p45-qp9h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences