CVE-2019-10939

CRITICAL
9.8
CVSS Score
Published: April 14, 2020 at 07:50 PM UTC
Updated: June 17, 2026 at 02:11 AM UTC
10 products affected across 1 vendorTim 4R Ie FirmwareTim 4R Ie DNP3 FirmwareTim 3V Ie Firmware

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Severity
CRITICAL9.8
Exploit prediction
EPSS 1%

Description

A vulnerability has been identified in TIM 3V-IE (incl. SIPLUS NET variants) (All versions < V2.8), TIM 3V-IE Advanced (incl. SIPLUS NET variants) (All versions < V2.8), TIM 3V-IE DNP3 (incl. SIPLUS NET variants) (All versions < V3.3), TIM 4R-IE (incl. SIPLUS NET variants) (All versions < V2.8), TIM 4R-IE DNP3 (incl. SIPLUS NET variants) (All versions < V3.3). The affected versions contain an open debug port that is available under certain specific conditions. The vulnerability is only available if the IP address is configured to 192.168.1.2. If available, the debug port could be exploited by an attacker with network access to the device. No user interaction is required to exploit this vulnerability. The vulnerability impacts confidentiality, integrity, and availability of the affected device. At the stage of publishing this security advisory no public exploitation is known.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.8
Affected range stops below 2.8, so it looks safe — our inference, not a vendor statement
siemens-tim-3v-ie-advanced (same device)
v < 2.8
Affected range stops below 2.8, so it looks safe — our inference, not a vendor statement
siemens-tim-3v-ie-dnp3 (same device)
v < 2.8
Affected range stops below 2.8, so it looks safe — our inference, not a vendor statement
siemens-tim-3v-ie (same device)
v < 3.3
Affected range stops below 3.3, so it looks safe — our inference, not a vendor statement
siemens-tim-4r-ie-dnp3 (same device)
v < 3.3
Affected range stops below 3.3, so it looks safe — our inference, not a vendor statement
siemens-tim-4r-ie (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-489NVD-CWE-Other

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