CRITICALCVSS 9.1Vulnerability
CVE-2026-8065
An authentication bypass vulnerability in the firmware update endpoint of Hitachi Energy RTU500 end-of-life versions allows an unauthenticated attacker to upload arbitrary firmware through a crafted POST request. Successful exploitation could allow the attacker to modify device functionality or compromise the integrity or availability of the device.
Properties
- Severity
- CRITICAL
- Epss score
- 0.00577
- Cvss score
- 9.1
- Cvss severity
- CRITICAL
- Retrieved at
- 2026-10-21T01:24:51+00:00
- Last source
- FIRST EPSS
- Score
- 9.1
- Cve id
- CVE-2026-8065
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- First seen by Signal
- 2026-10-18T14:03:35+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- Published at
- 2026-09-29T10:17:13.110
- Last modified
- 2026-09-29T21:39:02.570
- Epss percentile
- 0.46523
Related Entities (1)
HAS_WEAKNESS (1)
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