CVE-2025-1445

highpriority · track · 0EPSS 0.003 · 27 %ileDEEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.34% (27th) EPSS
CVSS 7.5 · high
Is it mine?
10 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · cert_bund · cisa_csaf_ot

EPSS · scored 2026-10-27

A vulnerability exists in RTU IEC 61850 client and server functionality that could impact the availability if renegotiation of an open IEC61850 TLS connection takes place in specific timing situations, when IEC61850 communication is active. Precondition is that IEC61850 as client or server are configured using TLS on RTU500 device. It affects the CMU the IEC61850 stack is configured on.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • FixedCMU Firmwarecisa_csaf_ot

    Update to CMU Firmware version 13.7.7

  • MitigationCMU Firmwarecisa_csaf_ot

    For all versions, apply General Mitigation Factors/Workarounds. Upgrade the system once remediated version in available, or apply general mitigation factors.

02

cvss

Technical severity, 0–10. One row per scoring source.

8.7
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · CISA US
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · cybersecurity@hitachienergy.comexploitability 3.9 · impact 3.6
v4.08.7highCVSS: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:Asecondary · ENISA EU
v4.08.7highCVSS: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:Xsecondary · cybersecurity@hitachienergy.com
v4.06.6mediumCVSS: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:U/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:Xsecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-820USCWE-820US
05

affected products (10)

Products and version ranges known to be affected.

06

advisories (2)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2025-0637Hitachi Energy RTU500: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2025-03-25csaf · cert_bundDE

    Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Hitachi Energy RTU500 ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen.

  • ICSA-25-093-01Hitachi Energy RTU500 Series (Update B)2025-03-25icsa · cisa_csaf_otUS

    Hitachi Energy is aware of the vulnerabilities, CVE-2024-10037, CVE-2024-11499, CVE-2024-12169, and CVE-2025-1445 in the RTU500 Web server component, the IEC 60870-5-104 controlled station implementation and IEC 61850 implementation, that affects the RTU500 versions that are listed below. An attacker successfully exploiting these vulnerabilities could trigger a restart of a RTU500 CMU. Please refer to the Recom-mended Immediate Actions for information about the available mitigation/remediation strategies.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcert_bundcisa_csaf_otNVDCVE.orgMITRE
published 2025-03-25modified 2026-06-17
09

references (5)

External citations — patches, advisories, analysis.

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