Vulnerability · CVE-2023-46143
CVE-2023-46143 is listed by Hitachi Energy RTU500.
Published Oct 6, 2026 · CISA
Last checked Oct 24, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2023-46143. EPSS is 0.33%. Act only if a listed version of CISA is installed.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Unknown—
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.33%
- Remediation
- Not established
- Affected products
- CISA
CVE-2023-46143 is listed by Hitachi Energy RTU500.
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2023-46143
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
No version range is stored, so an installed version cannot be checked on this page.
Advisory
Open the cisa_advisories record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2023-46143. EPSS is 0.33%. Act only if a listed version of CISA is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.33%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 6, 2026 · CISA Cybersecurity Advisories
Detected
View CSAF Summary Hitachi Energy is publishing this cybersecurity advisory in response to the security findings reported by Dragos affecting end-of-life RTU500 CMU firmware version 9.x. The reported findings are associated with legacy RTU500 firmware versions that were developed according to the cybersecurity requirements, threat landscape, and industry practices that existed at the time of their
Sources
- CISA Cybersecurity AdvisoriesGovernment advisoryCVE-2023-46143
View CSAF Summary Hitachi Energy is publishing this cybersecurity advisory in response to the security findings reported by Dragos affecting end-of-life RTU500 CMU firmware version 9.x. The reported findings are associated with legacy RTU500 firmware versions that were developed
cisa.gov - CISA ICS AdvisoriesGovernment advisoryCVE-2023-46143
View CSAF Summary Hitachi Energy is publishing this cybersecurity advisory in response to the security findings reported by Dragos affecting end-of-life RTU500 CMU firmware version 9.x. The reported findings are associated with legacy RTU500 firmware versions that were developed
cisa.gov - CVE.orgVulnerability recordCVE-2023-46143
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2023-46143
30-day exploitation probability 0.33%
first.org
Freshness
Last verified in this catalog Oct 24, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 24, 2026
- CISA Cybersecurity AdvisoriesOct 17, 2026
- CISA ICS AdvisoriesOct 17, 2026
- CVE.orgOct 16, 2026