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Fencer Vulns
critical 9.8

CVE-2019-10939 json

A vulnerability has been identified in TIM 3V-IE (incl.

published 2020-04-14 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-2653

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

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.

Patch / fix

  • siemens tim_3v-ie_firmware 2.8
  • siemens tim_3v-ie_advanced_firmware 2.8
  • siemens tim_4r-ie_firmware 3.3
  • siemens tim_3v-ie_dnp3_firmware 2.8
  • siemens tim_4r-ie_dnp3_firmware 3.3

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-20-105-09 updated cvss 9.0

Siemens TIM 3V-IE and 4R-IE Family Devices

  • Siemens TIM 3V-IE (incl. SIPLUS NET variants) <V2.8 Siemens TIM 3V-IE Advanced (incl. SIPLUS NET variants) <V2.8
    affected: fixed in V2.8, mitigation
  • Siemens TIM 3V-IE DNP3 (incl. SIPLUS NET variants) <V3.3
    affected: fixed in V3.3, mitigation
  • Siemens TIM 4R-IE (incl. SIPLUS NET variants) <V2.8
    affected: fixed in V2.8, mitigation
  • Siemens TIM 4R-IE DNP3 (incl. SIPLUS NET variants) <V3.3
    affected: fixed in V3.3, mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

1.12% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Siemens AG TIM 3V-IE (incl. SIPLUS NET variants)
  • Siemens AG TIM 3V-IE Advanced (incl. SIPLUS NET variants)
  • Siemens AG TIM 3V-IE DNP3 (incl. SIPLUS NET variants)
  • Siemens AG TIM 4R-IE (incl. SIPLUS NET variants)
  • Siemens AG TIM 4R-IE DNP3 (incl. SIPLUS NET variants)

Classification

Weakness

References

Sources

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.