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TI-2026-01455 Aliases CVE-2026-1772GHSA-pwpc-5pp8-7qw9

RTU500 web interface: An unprivileged user can read user management information.

Priority LOW 24CWE-280Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

RTU500 web interface: An unprivileged user can read user management information. The information cannot be accessed via the RTU500 web user interface but requires further tools like browser development utilities to access them without required privileges.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00293 22nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
Hitachi EnergyRTU500 series CMU firmware12.7.1 – 12.7.7; 13.5.1 – 13.5.4; 13.6.1 – 13.6.2; 13.7.1 – 13.7.7; 13.8.1—No fix listedCNA
  • RTU500 series CMU firmware VendorHitachi Energy Affected 12.7.1 – 12.7.7; 13.5.1 – 13.5.4; 13.6.1 – 13.6.2; 13.7.1 – 13.7.7; 13.8.1 Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:o:hitachienergy:rtu520_firmware:*:*:*:*:*:*:*:*12.7.1 – 12.7.7; 13.5.1 – 13.5.4; 13.6.1 – 13.6.2; 13.7.1 to before 13.7.8VulnerableHitachi Energy
cpe:2.3:o:hitachienergy:rtu520_firmware:13.8.1:*:*:*:*:*:*:*13.8.1VulnerableHitachi Energy
cpe:2.3:h:hitachienergy:rtu520:-:*:*:*:*:*:*:*not specified by NVDRunning onHitachi Energy
cpe:2.3:o:hitachienergy:rtu530_firmware:*:*:*:*:*:*:*:*12.7.1 – 12.7.7; 13.5.1 – 13.5.4; 13.6.1 – 13.6.2; 13.7.1 to before 13.7.8VulnerableHitachi Energy
cpe:2.3:o:hitachienergy:rtu530_firmware:13.8.1:*:*:*:*:*:*:*13.8.1VulnerableHitachi Energy
cpe:2.3:h:hitachienergy:rtu530:-:*:*:*:*:*:*:*not specified by NVDRunning onHitachi Energy
cpe:2.3:o:hitachienergy:rtu540_firmware:*:*:*:*:*:*:*:*12.7.1 – 12.7.7; 13.5.1 – 13.5.4; 13.6.1 – 13.6.2; 13.7.1 to before 13.7.8VulnerableHitachi Energy
cpe:2.3:o:hitachienergy:rtu540_firmware:13.8.1:*:*:*:*:*:*:*13.8.1VulnerableHitachi Energy
cpe:2.3:h:hitachienergy:rtu540:-:*:*:*:*:*:*:*not specified by NVDRunning onHitachi Energy
cpe:2.3:o:hitachienergy:rtu560_firmware:*:*:*:*:*:*:*:*12.7.1 – 12.7.7; 13.5.1 – 13.5.4; 13.6.1 – 13.6.2; 13.7.1 to before 13.7.8VulnerableHitachi Energy
  • cpe:2.3:o:hitachienergy:rtu520_firmware:*:*:*:*:*:*:*:* Versions 12.7.1 – 12.7.7; 13.5.1 – 13.5.4; 13.6.1 – 13.6.2; 13.7.1 to before 13.7.8 Vulnerable ·Hitachi Energy
  • cpe:2.3:o:hitachienergy:rtu520_firmware:13.8.1:*:*:*:*:*:*:* Versions 13.8.1 Vulnerable ·Hitachi Energy
  • cpe:2.3:h:hitachienergy:rtu520:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hitachi Energy
  • cpe:2.3:o:hitachienergy:rtu530_firmware:*:*:*:*:*:*:*:* Versions 12.7.1 – 12.7.7; 13.5.1 – 13.5.4; 13.6.1 – 13.6.2; 13.7.1 to before 13.7.8 Vulnerable ·Hitachi Energy
  • cpe:2.3:o:hitachienergy:rtu530_firmware:13.8.1:*:*:*:*:*:*:* Versions 13.8.1 Vulnerable ·Hitachi Energy
  • cpe:2.3:h:hitachienergy:rtu530:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hitachi Energy
  • cpe:2.3:o:hitachienergy:rtu540_firmware:*:*:*:*:*:*:*:* Versions 12.7.1 – 12.7.7; 13.5.1 – 13.5.4; 13.6.1 – 13.6.2; 13.7.1 to before 13.7.8 Vulnerable ·Hitachi Energy
  • cpe:2.3:o:hitachienergy:rtu540_firmware:13.8.1:*:*:*:*:*:*:* Versions 13.8.1 Vulnerable ·Hitachi Energy
  • cpe:2.3:h:hitachienergy:rtu540:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hitachi Energy
  • cpe:2.3:o:hitachienergy:rtu560_firmware:*:*:*:*:*:*:*:* Versions 12.7.1 – 12.7.7; 13.5.1 – 13.5.4; 13.6.1 – 13.6.2; 13.7.1 to before 13.7.8 Vulnerable ·Hitachi Energy
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:hitachienergy:rtu560_firmware:13.8.1:*:*:*:*:*:*:*13.8.1VulnerableHitachi Energy
cpe:2.3:h:hitachienergy:rtu560:-:*:*:*:*:*:*:*not specified by NVDRunning onHitachi Energy
  • cpe:2.3:o:hitachienergy:rtu560_firmware:13.8.1:*:*:*:*:*:*:* Versions 13.8.1 Vulnerable ·Hitachi Energy
  • cpe:2.3:h:hitachienergy:rtu560:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hitachi Energy

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-1772
  2. 2026-10-03 Alias added: GHSA-pwpc-5pp8-7qw9

References

Advisory 1

  • TI-2026-01456 IEC 60870-5-104 used in RTU500: Potential Denial of Service impact on reception of… CVSS 4.0HIGH 8.7
  • TI-2022-01926 Out-of-bounds write in Hitachi Energy RTU500 series CMU firmware CVSS 3.1HIGH 7.5
  • TI-2023-05307 Cross-site scripting in Hitachi Energy RTU500 CVSS 3.1MEDIUM 6.1
  • TI-2023-05306 Cross-site scripting in Hitachi Energy RTU500 series CVSS 3.1MEDIUM 6.1
  • TI-2023-05305 Cross-site scripting in Hitachi Energy RTU500 CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences