CVEvulnerability

CVE-2021-22779

9.1 CRITICAL Published 2021-07-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-07-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 2.0 ([email protected])
6.4 MEDIUM — AV:N/AC:L/Au:N/C:P/I:P/A:N
Weaknesses
CWE-290

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.

Affected configurations

• schneider-electric ecostruxure control expert (< 15.0) • schneider-electric ecostruxure control expert 15.0 • 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 • schneider-electric modicon m580 bmeh582040c firmware • schneider-electric modicon m580 bmeh582040s firmware • schneider-electric modicon m580 bmeh584040 firmware • schneider-electric modicon m580 bmeh584040c firmware • schneider-electric modicon m580 bmeh584040s firmware • schneider-electric modicon m580 bmeh586040 firmware • schneider-electric modicon m580 bmeh586040c firmware • schneider-electric modicon m580 bmeh586040s firmware • schneider-electric modicon m340 bmxp341000 firmware • schneider-electric modicon m340 bmxp342010 firmware • schneider-electric modicon m340 bmxp342020 firmware • schneider-electric modicon m340 bmxp342030 firmware

Related

Weakness · CWE (1)

  • CWE-290 Authentication Bypass by Spoofing weakness

References