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Fencer Vulns
medium 6.5

CVE-2024-12169 json

A vulnerability exists in RTU500 IEC 60870-5-104 controlled station functionality and IEC 61850 functionality, that allows an attacker perf…

published 2025-03-25 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-54517

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

A vulnerability exists in RTU500 IEC 60870-5-104 controlled station functionality and IEC 61850 functionality, that allows an attacker performing a specific attack sequence to restart the affected CMU. This vulnerability only applies, if secure communication using IEC 62351-3 (TLS) is enabled.

Patch / fix

  • Hitachi Energy RTU500 13.7.6

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-25-093-01 updated cvss 6.5

Hitachi Energy RTU500 Series (Update B)

  • Hitachi Energy CMU Firmware >= 13.4.1, <= 13.4.4, >= 13.5.1, <= 13.5.3, 13.6.1, >= 13.7.1, <= 13.7.4
    affected: vendor fix
  • Hitachi Energy CMU Firmware 13.7.6
    fixed

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
19 mo ago

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/R:A
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:A/V:X/RE:X/U:X

Affected products

  • Hitachi Energy RTU500

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.