CVE-2026-8066

LOWCVSS 9.1 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A directory traversal vulnerability in the file upload functionality of Hitachi Energy RTU500 end-of-life versions allows an unauthenticated attacker to write or overwrite arbitrary files on the device file system. Depending on the files affected, successful exploitation could result in unauthorized modification of device data or disruption of the device’s intended operation.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-23

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-30: 109-30
Referenced assets1 URL
By indicator
Full discourse1 post
  • Cybersecurity News DE@cybsecuritynews

    #schwachstellen Hitachi Energy RTU500: Kritische Schwachstellen erlauben Firmware-Upload und Dateischreiben ohne Anmeldung #cve20268065 #cve20268066 #hitachienergy #rtu500 https://cybersecurity-news.de/hitachi-energy-rtu500-cve-2026-8065-cve-2026-8066

    0000028
    14 followersView on X

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