Unrated severityNVD Advisory· Published Feb 1, 2023· Updated Feb 5, 2025
CVE-2021-22786
CVE-2021-22786
Description
A CWE-200: Information Exposure vulnerability exists that could cause the exposure of sensitive information stored on the memory of the controller when communicating over the Modbus TCP protocol. Affected Products: Modicon M340 CPU (part numbers BMXP34*) (Versions prior to V3.30), Modicon M580 CPU (part numbers BMEP* and BMEH*) (Versions prior to SV3.20), Modicon MC80 (BMKC80) (Versions prior to V1.6), Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S) (All Versions), Modicon Momentum MDI (171CBU*) (Versions prior to V2.3), Legacy Modicon Quantum (All Versions)
Affected products
9- Range: <V3.30
- Range: <SV3.20
<V1.6+ 1 more
- (no CPE)range: <V1.6
- (no CPE)range: All
- Range: All Versions
- Schneider Electric/Modicon M340 CPU (part numbers BMXP34*)v5Range: All
- Schneider Electric/Modicon M580 CPU (part numbers BMEP* and BMEH*)v5Range: All
- Schneider Electric/Modicon M580 CPU Safety (part numbers BMEP58*S and BMEH58*S)v5Range: All Versions
- Schneider Electric/Modicon Momentum CPU (171CBU*)v5Range: All
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
0No linked articles in our index yet.