Review reviewHigh

CVE-2026-44092

Phoenix Contact CHARX SEC-3150, CHARX SEC-3100, CHARX SEC-3050

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
8.8
EPSS
0.38%
30.7% percentile
CISA KEV
Not listed
Published
2026.07.30
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.38%
Technical severityCVSS 8.8

Vulnerability overview

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.

Affected product and versions

Product
Phoenix Contact CHARX SEC-3150, CHARX SEC-3100, CHARX SEC-3050
Affected versions
>= 1.0.0 < 1.9.1
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Phoenix Contact CHARX SEC-3150, CHARX SEC-3100, CHARX SEC-3050 and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
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
CWE
CWE-93
CVE-2026-44092 — Phoenix Contact CHARX SEC-3150, CHARX SEC-3100, CHARX SEC-3050 | SECUFOCUS NOW