CVE-2026-44091 json
Creation of a new configuration by posting a malicious ID to MQTT
published 2026-07-30 3 mo ago modified 2026-07-31 3 mo ago also EUVD-2026-51026
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Phoenix Contact CHARX SEC-3150 1.9.1
- Phoenix Contact CHARX SEC-3100 1.9.1
- Phoenix Contact CHARX SEC-3050 1.9.1
- Phoenix Contact CHARX SEC-3000 1.9.1
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.8 | 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 |
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
| CNA | 4.0 | 8.8 | 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 |
Affected products
- Phoenix Contact CHARX SEC-3150
- Phoenix Contact CHARX SEC-3100
- Phoenix Contact CHARX SEC-3050
- Phoenix Contact CHARX SEC-3000
Classification
- Weakness
-
- CWE-501 Trust Boundary Violation
References
Sources
- CVE List CVE-2026-44091
- NVD CVE-2026-44091
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.