Improper check for unusual conditions in Schneider Electric Modicon Quantum 140 NOE771x1
Priority LOW 35CWE-754Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An Improper Check for Unusual or Exceptional Conditions (CWE-754) vulnerability exists in Modicon Quantum 140 NOE771x1 version 6.9 and earlier, which could cause denial of service when the module receives an IP fragmented packet with a length greater than 65535 bytes. The module then requires a power cycle to recover.
Why it matters now
EPSS 0.0131 70th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Schneider Electric | Modicon Quantum 140 NOE771x1 | up to 6.9 | — | No fix listed | CNA |
- Modicon Quantum 140 NOE771x1 VendorSchneider Electric Affected up to 6.9 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:schneider-electric:modicon_quantum_140noe77101_firmware:*:*:*:*:*:*:*:* | up to 6.9 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_quantum_140noe77101:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
| cpe:2.3:o:schneider-electric:modicon_quantum_140noe77111_firmware:*:*:*:*:*:*:*:* | up to 6.9 | Vulnerable | Schneider Electric |
| cpe:2.3:h:schneider-electric:modicon_quantum_140noe77111:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Schneider Electric |
- cpe:2.3:o:schneider-electric:modicon_quantum_140noe77101_firmware:*:*:*:*:*:*:*:* Versions up to 6.9 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_quantum_140noe77101:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
- cpe:2.3:o:schneider-electric:modicon_quantum_140noe77111_firmware:*:*:*:*:*:*:*:* Versions up to 6.9 Vulnerable ·Schneider Electric
- cpe:2.3:h:schneider-electric:modicon_quantum_140noe77111:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-6811
- 2026-10-03 Alias added: GHSA-3xxj-wpwj-gxhm
References
More Schneider Electric Modicon Quantum 140noe77101 Firmware vulnerabilities
- TI-2022-17384 Integer underflow in Schneider Electric Modicon M340 CPU CVSS 3.1HIGH 7.5
- TI-2020-06087 Buffer overflow in Web Server on Modicon M340, Modicon Quantum and Modicon Premium Legacy… CVSS 3.1HIGH 8.8
- TI-2020-06086 Out-of-bounds write in Web Server on Modicon M340, Modicon Quantum and Modicon Premium… CVSS 3.1HIGH 8.8
- TI-2020-06085 Out-of-bounds read in Web Server on Modicon M340, Modicon Quantum and Modicon Premium… CVSS 3.1HIGH 8.1
Sources
- CVE-2019-6811 · CVE Program
- CVE-2019-6811 · NVD
- FIRST EPSS
- GHSA-3xxj-wpwj-gxhm · 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