CVE-2023-1256

9.8 criticalEPSS 0.7%

Critical (9.8) in aveva. EPSS 0.7% chance of exploitation in the next 30 days.

The listed versions of AVEVA Plant SCADA and AVEVA Telemetry Server are vulnerable to an improper authorization exploit which could allow an unauthenticated user to remotely read data, cause denial of service, and tamper with alarm states.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-31)
Published: 2023-03-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

aveva:aveva_plant_scada
aveva:telemetry_server

References

https://www.cisa.gov/news-events/ics-advisories/icsa-23-073-04
https://www.cisa.gov/news-events/ics-advisories/icsa-23-073-04

Check your stack JSON