CVE-2018-7798
Summary
| CVE | CVE-2018-7798 |
|---|---|
| State | PUBLISHED |
| Assigner | schneider |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2018-11-02 17:29:00 UTC |
| Updated | 2026-05-29 15:16:16 UTC |
| Description | A Insufficient Verification of Data Authenticity (CWE-345) vulnerability exists in the Modicon M221, all versions, which could cause a change of IPv4 configuration (IP address, mask and gateway) when remotely connected to the device. |
Risk And Classification
Primary CVSS: v3.1 8.2 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
EPSS: 0.001570000 probability, percentile 0.362530000 (date 2026-06-02)
Problem Types: CWE-345 | Insufficient Verification of Data Authenticity | CWE-345 CWE-345 Insufficient Verification of Data Authenticity
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 8.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L |
| 3.1 | ADP | DECLARED | 8.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L |
| 3.1 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary | 8.2 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L |
| 2.0 | [email protected] | Primary | 6.4 | AV:N/AC:L/Au:N/C:N/I:P/A:P |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
HighAvailability
LowCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
PartialAvailability
PartialAV:N/AC:L/Au:N/C:N/I:P/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Schneider-electric | Modicon M221 | - | All | All | All |
| Application | Schneider-electric | Somachine Basic | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Schneider Electric SE | Modicon M221 All Versions | affected Modicon M221, All Versions | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Security Notification - Modicon M221 | Schneider Electric | af854a3a-2127-422b-91ae-364da2661108 | www.schneider-electric.com | Mitigation, Vendor Advisory |
| Schneider Electric Modicon M221 CVE-2018-7798 Remote Security Bypass Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Third Party Advisory, VDB Entry |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 590480 Schneider Electric Modicon M221 Insufficient Verification of Data Authenticity Vulnerability(ICSA-18-324-02)