CVE-2024-2617

highpriority · track · 0EPSS 0.007 · 51 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.66% (51st) EPSS

CVSS 7.2 · high

Is it mine?

15 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · cisa_csaf_ot

EPSS · scored 2026-10-26

A vulnerability exists in the RTU500 that allows for authenticated and authorized users to bypass secure update, if secure update feature was not enabled on all CMUs of a RTU500. If a malicious actor successfully exploits this vulnerability, they could use it to update the RTU500 with unsigned firmware.

remediations

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

A vendor fix is available.

FixedRTU500 series CMU Firmwarecisa_csaf_ot
Update to CMU Firmware version 13.5.4 or latest and enable secure update feature on all CMUs of an RTU500.

cvss

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

7.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–7.2

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · CISA US

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · cybersecurity@hitachienergy.comexploitability 1.2 · impact 5.9

v3.16.6mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-358USCWE-358US

affected products (15)

Products and version ranges known to be affected.

Hitachi Energy RTU500 <=13.2.7all versionscert_bundDE
Hitachi Energy RTU500 <=13.4.4all versionscert_bundDE
Hitachi Energy RTU500 <=13.5.3all versionscert_bundDE
Hitachi Energy RTU500≤ 13.2.7cert_bundDE
Hitachi Energy RTU500≤ 13.4.4cert_bundDE
Hitachi Energy RTU500≤ 13.5.3cert_bundDE
RTU500 series CMU Firmware version 13.2.1 – 13.2.7all versionscisa_csaf_otUS
RTU500 series CMU Firmware version 13.4.1 – 13.4.4all versionscisa_csaf_otUS
RTU500 series CMU Firmware version 13.5.1 – 13.5.3all versionscisa_csaf_otUS
Hitachi Energy RTU500 series CMU Firmware≤ vers:RTU500_series_CMU_Firmware/>=13.4.1|<=13.4.4cisa_csaf_otUS
Hitachi Energy RTU500 series CMU Firmware≤ vers:RTU500_series_CMU_Firmware/>=13.5.1|<=13.5.3cisa_csaf_otUS
Hitachi Energy RTU500 series CMU Firmware≤ vers:RTU500_series_CMU_Firmware/>=13.2.1|<=13.2.7cisa_csaf_otUS
Hitachi Energy RTU500 series CMU Firmware≤ 13.2.1 ≤13.2.7enisa_euvdEU
Hitachi Energy RTU500 series CMU Firmware≤ 13.4.1 ≤13.4.4enisa_euvdEU
Hitachi Energy RTU500 series CMU Firmware≤ 13.5.1 ≤13.5.3enisa_euvdEU

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-0999Hitachi Energy RTU500: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2024-05-01csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Hitachi Energy RTU500 ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
ICSA-25-023-02Hitachi Energy RTU500 Series Product (Update B)2024-04-30icsa · cisa_csaf_otUS
Hitachi Energy is aware of the vulnerability CVE-2024-2617 in the RTU500 Web server component, that affects the RTU500 versions that are listed below. An attacker successfully exploiting this vulnerability could bypass secure update. Please refer to the Recommended Immediate Actions for information about the available mitigation/remediation strategies.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund cisa_csaf_ot NVD CVE.org MITRE

published 2024-04-30modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

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