Critical severity · published Jul 30, 2026
CVE-2026-44092
Missing input validation / stripping of CRLF characters in SystemConfigManager
9.1
CVSS
0.7%
EPSS
No
On KEV
Description
An unauthenticated remote attacker can inject malicious input into the ModbusServer application because it does not validate the input it fetches from MQTT. This may lead to integrity and availability loss.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CS
CHARX SEC-3000 · Phoenix Contact
1.0.0 before 1.9.1 · source: vendor
CS
CHARX SEC-3050 · Phoenix Contact
1.0.0 before 1.9.1 · source: vendor
CS
CHARX SEC-3100 · Phoenix Contact
1.0.0 before 1.9.1 · source: vendor
CS
CHARX SEC-3150 · Phoenix Contact
1.0.0 before 1.9.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-44092
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-44092
www.certvde.com
https://www.certvde.com/en/advisories/VDE-2026-008/
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