EUVD-2026-51026
GHSA-pwf7-5xmc-7x99
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Unauthenticated network POST to the MQTT broker (AV:N/AC:L/PR:N/UI:N) writes config with no confidentiality impact (C:N) but high integrity and availability loss (I:H/A:H).
Primary rating from Vendor (cert).
CVSS VectorVendor: cert
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3DescriptionCVE.org
An unauthenticated remote attacker can post a malicious ID to the MQTT Broker results in the creation of a new configuration entry in the system configuration. This may lead to integrity and availability loss.
AnalysisAI
Unauthenticated configuration injection in Phoenix Contact CHARX SEC-3000/3050/3100/3150 EV charging controllers (versions 1.0.0 through 1.9.0) lets a remote attacker POST a malicious ID to the device's MQTT broker and thereby create a new entry in the system configuration, causing integrity and availability loss. Reported by CERT@VDE (advisory VDE-2026-008), the flaw carries a CVSS 4.0 base score of 8.8 and requires no authentication or user interaction. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires network reachability to the CHARX SEC controller's MQTT broker interface; the attacker POSTs a malicious ID which is accepted and written as a new system configuration entry. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The supplied CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N, VC:N/VI:H/VA:H) describes a network-reachable, low-complexity, unauthenticated attack with high integrity and availability impact but no confidentiality impact, scoring 8.8 (High) - consistent with the description of configuration tampering rather than data theft. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with network access to a CHARX SEC controller's MQTT broker sends a crafted message containing a malicious ID, which the device accepts without authentication and writes as a new system configuration entry, corrupting device state and potentially disrupting charging availability. Because the CVSS vector is AV:N/AC:L/PR:N/UI:N, this needs only reachability to the broker and no credentials, user interaction, or complex preconditions. … |
| Remediation | Vendor-released patch: firmware version 1.9.1 - upgrade all CHARX SEC-3000, SEC-3050, SEC-3100, and SEC-3150 controllers from any 1.0.0-1.9.0 release to 1.9.1 or later as the primary fix, per CERT@VDE advisory VDE-2026-008 (https://www.certvde.com/en/advisories/VDE-2026-008/). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify and document all Phoenix Contact CHARX SEC-3000, SEC-3050, SEC-3100, and SEC-3150 devices currently deployed, recording firmware versions. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-501 – Trust Boundary Violation
View allSame technique Information Disclosure
View allShare
External POC / Exploit Code
Leaving vuln.today