CVE-2021-22779
Authentication Bypass by Spoofing vulnerability exists in EcoStruxure Control Expert (all versions prior to V15.0 SP1, including all versions of Unity Pro), EcoStruxure Control Expert V15.0 SP1, EcoStruxure Process Expert (all versions, including all…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.02%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Authentication Bypass by Spoofing vulnerability exists in EcoStruxure Control Expert (all versions prior to V15.0 SP1, including all versions of Unity Pro), EcoStruxure Control Expert V15.0 SP1, EcoStruxure Process Expert (all versions, including all versions of EcoStruxure Hybrid DCS), SCADAPack RemoteConnect for x70 (all versions), Modicon M580 CPU (all versions - part numbers BMEP* and BMEH*), Modicon M340 CPU (all versions - part numbers BMXP34*), that could cause unauthorized access in read and write mode to the controller by spoofing the Modbus communication between the engineering software and the controller.
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 1.02% probability · 62th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-290
- Affected
- schneider-electric/ecostruxure control expert · schneider-electric/ecostruxure process expert · schneider-electric/remoteconnect · schneider-electric/modicon m580 bmep581020 firmware · schneider-electric/modicon m580 bmep581020h firmware · schneider-electric/modicon m580 bmep582020 firmware · schneider-electric/modicon m580 bmep582020h firmware · schneider-electric/modicon m580 bmep582040 firmware · schneider-electric/modicon m580 bmep582040h firmware · schneider-electric/modicon m580 bmep582040s firmware · schneider-electric/modicon m580 bmep583020 firmware · schneider-electric/modicon m580 bmep583040 firmware · schneider-electric/modicon m580 bmep584020 firmware · schneider-electric/modicon m580 bmep584040 firmware · schneider-electric/modicon m580 bmep584040s firmware · schneider-electric/modicon m580 bmep585040 firmware · schneider-electric/modicon m580 bmep585040c firmware · schneider-electric/modicon m580 bmep586040 firmware · schneider-electric/modicon m580 bmep586040c firmware · schneider-electric/modicon m580 bmeh582040 firmware · +12 more
- Source
- cybersecurity@se.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.