What’s Vulnerable › Vulnerabilities
CVE-2021-22790
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-09-02 · updated 2026-06-17
- Weakness: CWE-125
Description
A CWE-125: Out-of-bounds Read vulnerability that could cause a Denial of Service on the Modicon PLC controller / simulator when updating the controller application with a specially crafted project file exists in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions).
Affected products
- Schneider-Electric Modicon M340 Bmxp341000: all versions
- Schneider-Electric Modicon M340 Bmxp342010: all versions
- Schneider-Electric Modicon M340 Bmxp342020: all versions
- Schneider-Electric Modicon M340 Bmxp342030: all versions
- Schneider-Electric Modicon M580 Bmeh582040: all versions
- Schneider-Electric Modicon M580 Bmeh582040C: all versions
- Schneider-Electric Modicon M580 Bmeh582040S: all versions
- Schneider-Electric Modicon M580 Bmeh584040: all versions
- Schneider-Electric Modicon M580 Bmeh584040C: all versions
- Schneider-Electric Modicon M580 Bmeh584040S: all versions
- Schneider-Electric Modicon M580 Bmeh586040: all versions
- Schneider-Electric Modicon M580 Bmeh586040C: all versions
- Schneider-Electric Modicon M580 Bmeh586040S: all versions
- Schneider-Electric Modicon M580 Bmep581020: all versions
- Schneider-Electric Modicon M580 Bmep581020H: all versions
- Schneider-Electric Modicon M580 Bmep582020: all versions
- Schneider-Electric Modicon M580 Bmep582020H: all versions
- Schneider-Electric Modicon M580 Bmep582040: all versions
- Schneider-Electric Modicon M580 Bmep582040H: all versions
- Schneider-Electric Modicon M580 Bmep582040S: all versions
- Schneider-Electric Modicon M580 Bmep583020: all versions
- Schneider-Electric Modicon M580 Bmep583040: all versions
- Schneider-Electric Modicon M580 Bmep584020: all versions
- Schneider-Electric Modicon M580 Bmep584040: all versions
- Schneider-Electric Modicon M580 Bmep584040S: all versions
- Schneider-Electric Modicon M580 Bmep585040: all versions
- Schneider-Electric Modicon M580 Bmep585040C: all versions
- Schneider-Electric Modicon M580 Bmep586040: all versions
- Schneider-Electric Modicon M580 Bmep586040C: all versions
- Schneider-Electric Modicon Mc80 Bmkc8020301: all versions
References
- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-222-05
- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-222-04
- https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-222-05
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