CVE-2018-7850
A CWE-807: Reliance on Untrusted Inputs in a Security Decision vulnerability exists in all...
A CWE-807: Reliance on Untrusted Inputs in a Security Decision vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause invalid information displayed in Unity Pro software.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
A CWE-807: Reliance on Untrusted Inputs in a Security Decision vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause invalid information displayed in Unity Pro software.
- Record
CVE-2018-7850- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Updated
- 2026-11-02
CVE List No score
A CWE-807: Reliance on Untrusted Inputs in a Security Decision vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause invalid information displayed in Unity Pro software.
- Record
CVE-2018-7850- Updated
- 2026-11-02
EUVDEUVD-2018-19562 No score
A CWE-807: Reliance on Untrusted Inputs in a Security Decision vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause invalid information displayed in Unity Pro software.
- Record
EUVD-2018-19562- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6f6m-mrw4-hx37 No score
A CWE-807: Reliance on Untrusted Inputs in a Security Decision vulnerability exists in all...
A CWE-807: Reliance on Untrusted Inputs in a Security Decision vulnerability exists in all versions of the Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium which could cause invalid information displayed in Unity Pro software.
- Record
GHSA-6f6m-mrw4-hx37- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-7850 is a medium vulnerability (CVSS 5.3) in Schneider-electric Modicon M340 Firmware, published May 22, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.51%, the 74th percentile. No source names a fixed version.