Out-of-bounds write in Modicon M580 CPU , Modicon M340 CPU , Modicon MC80 , Modicon…
Priority LOW 30CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
A CWE-787: Out-of-bounds Write 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).
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00855 58th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | 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) | all versions | — | No fix listed | CNA |
- 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) Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 49
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:schneider-electric:modicon_m340_bmxp341000:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m340_bmxp342010:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m340_bmxp342020:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m340_bmxp342030:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040c:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040s:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040c:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040s:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
- cpe:2.3:h:schneider-electric:modicon_m340_bmxp341000:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m340_bmxp342010:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m340_bmxp342020:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m340_bmxp342030:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040c:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh582040s:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040c:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh584040s:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
Show 39 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040c:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040s:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep581020:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep581020h:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep582020:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep582020h:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep582040:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep582040h:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep582040s:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep583020:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep583040:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep584020:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep584040:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep584040s:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep585040:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep585040c:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep586040:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_m580_bmep586040c:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8020301:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8020310:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8030311:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_momentum_171cbu78090:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_momentum_171cbu98090:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_momentum_171cbu98091:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_1634m:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_2634m:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_2834m:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_454m:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_4634m:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_554m:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_5634m:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_6634m:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_quantum_140cpu65150:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_quantum_140cpu65150c:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_quantum_140cpu65160:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_quantum_140cpu65160c:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:plc_simulator_for_ecostruxure_control_expert:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:plc_simulator_for_ecostruxure_process_expert:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Schneider Electric |
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040c:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmeh586040s:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep581020:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep581020h:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep582020:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep582020h:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep582040:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep582040h:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep582040s:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep583020:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep583040:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep584020:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep584040:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep584040s:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep585040:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep585040c:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep586040:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_m580_bmep586040c:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8020301:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8020310:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_mc80_bmkc8030311:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_momentum_171cbu78090:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_momentum_171cbu98090:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_momentum_171cbu98091:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_1634m:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_2634m:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_2834m:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_454m:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_4634m:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_554m:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_5634m:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_premium_tsxp57_6634m:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_quantum_140cpu65150:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_quantum_140cpu65150c:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_quantum_140cpu65160:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_quantum_140cpu65160c:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:plc_simulator_for_ecostruxure_control_expert:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:plc_simulator_for_ecostruxure_process_expert:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-22791
- 2026-10-03 Alias added: GHSA-5p66-4x5x-2x4r
References
More Schneider Electric Modicon M340 Bmxp341000 vulnerabilities
- TI-2021-05672 NULL pointer dereference in Modicon M580 CPU , Modicon M340 CPU , Modicon MC80 , Modicon… CVSS 3.1HIGH 7.5
- TI-2021-05670 Out-of-bounds read in Modicon M580 CPU , Modicon M340 CPU , Modicon MC80 , Modicon… CVSS 3.1MEDIUM 6.5
- TI-2021-05669 Memory corruption in Modicon M580 CPU , Modicon M340 CPU , Modicon MC80 , Modicon… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2021-22791 · CVE Program
- CVE-2021-22791 · NVD
- FIRST EPSS
- GHSA-5p66-4x5x-2x4r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences