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high 7.1

CVE-2019-13939 json

A vulnerability has been identified in APOGEE MEC/MBC/PXC (P2) (All versions < V2.8.2), APOGEE PXC Compact (BACnet) (All versions < V3.5.3)…

published 6y ago modified 4mo ago also EUVD-2019-5206

cvss
7.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 54%
public exploits
0
none known

Summary

A vulnerability has been identified in APOGEE MEC/MBC/PXC (P2) (All versions < V2.8.2), APOGEE PXC Compact (BACnet) (All versions < V3.5.3), APOGEE PXC Compact (P2 Ethernet) (All versions >= V2.8.2 < V2.8.19), APOGEE PXC Modular (BACnet) (All versions < V3.5.3), APOGEE PXC Modular (P2 Ethernet) (All versions >= V2.8.2 < V2.8.19), Capital Embedded AR Classic 431-422 (All versions), Capital Embedded AR Classic R20-11 (All versions < V2303), Desigo PXC00-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC00-U (All versions >= V2.3x and < V6.00.327), Desigo PXC001-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC100-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC12-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC128-U (All versions >= V2.3x and < V6.00.327), Desigo PXC200-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC22-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC22.1-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC36.1-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC50-E.D (All versions >= V2.3 < V6.0.327), Desigo PXC64-U (All versions >= V2.3x and < V6.00.327), Desigo PXM20-E (All versions >= V2.3 < V6.0.327), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.3), Nucleus Source Code (All versions), SIMOTICS CONNECT 400 (All versions < V0.3.0.330), TALON TC Compact (BACnet) (All versions < V3.5.3), TALON TC Modular (BACnet) (All versions < V3.5.3). By sending specially crafted DHCP packets to a device where the DHCP client is enabled, an attacker could change the IP address of the device to an invalid value.

Patch / fix

  • Siemens APOGEE PXC Compact (BACnet) V3.5.3
  • Siemens APOGEE PXC Compact (P2 Ethernet) V2.8.19
  • Siemens APOGEE PXC Modular (BACnet) V3.5.3
  • Siemens APOGEE PXC Modular (P2 Ethernet) V2.8.19
  • Siemens Capital Embedded AR Classic R20-11 V2303
  • Siemens Desigo PXC00-E.D V6.0.327
  • Siemens Desigo PXC001-E.D V6.0.327
  • Siemens Desigo PXC100-E.D V6.0.327
  • Siemens Desigo PXC12-E.D V6.0.327
  • Siemens Desigo PXC200-E.D V6.0.327
  • Siemens Desigo PXC22-E.D V6.0.327
  • Siemens Desigo PXC22.1-E.D V6.0.327
  • Siemens Desigo PXC36.1-E.D V6.0.327
  • Siemens Desigo PXC50-E.D V6.0.327
  • Siemens Desigo PXM20-E V6.0.327
  • Siemens Nucleus ReadyStart V3 V2017.02.3
  • Siemens TALON TC Compact (BACnet) V3.5.3
  • Siemens TALON TC Modular (BACnet) V3.5.3

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Vendor advisories

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

cisa ICSA-20-105-06 updated cvss 7.1

Siemens SIMOTICS, Desigo, APOGEE, and TALON

show 7 more
  • Siemens Desigo PXC12-E.D >= V2.3, < V6.0.327 Siemens Desigo PXC22-E.D >= V2.3, < V6.0.327 Siemens Desigo PXC22.1-E.D >= V2.3, < V6.0.327 Siemens Desigo PXC36.1-E.D >= V2.3, < V6.0.327 Siemens Desigo PXC50-E.D >= V2.3, < V6.0.327
    affected: fixed in V6.0.327, mitigation support.industry.siemens.com
  • Siemens Desigo PXC64-U >=V2.3x_and_<V6.00.327
    affected: fixed in V6.00.327, mitigation support.industry.siemens.com
  • Siemens Desigo PXC100-E.D >= V2.3, < V6.0.327
    affected: fixed in V6.0.327, mitigation support.industry.siemens.com
  • Siemens Desigo PXC128-U >=V2.3x_and_<V6.00.327
    affected: fixed in V6.00.327, mitigation support.industry.siemens.com
  • Siemens Desigo PXC200-E.D >= V2.3, < V6.0.327 Siemens Desigo PXM20-E >= V2.3, < V6.0.327
    affected: fixed in V6.0.327, mitigation support.industry.siemens.com
  • Siemens SIMOTICS CONNECT 400 < V0.3.0.330
    affected: fixed in V0.3.0.330, mitigation support.industry.siemens.com
  • Siemens TALON TC Compact (BACnet) < V3.5.3 Siemens TALON TC Modular (BACnet) < V3.5.3
    affected: fixed in V3.5.3, mitigation partnerportal.extranet.dc.siemens.com

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

cisa ICSA-19-318-01 updated cvss 7.1

Siemens Mentor Nucleus Networking Module

  • Siemens Capital Embedded AR Classic 431-422
    affected: mitigation, no fix planned
  • Siemens Capital Embedded AR Classic R20-11 < V2303
    affected: fixed in V2303, mitigation
  • Siemens Nucleus NET
    affected: mitigation, no fix planned
  • Siemens Nucleus ReadyStart V3 < V2017.02.3
    affected: fixed in V2017.02.3, mitigation
  • Siemens Nucleus Source Code
    affected: vendor fix, 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

0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.1 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
CNA 4.0 7.1 CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
CNA 4.0 7.1 CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/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
NVD 2.0 4.8 AV:A/AC:L/Au:N/C:N/I:P/A:P

Affected products

  • Siemens APOGEE MEC/MBC/PXC (P2)
  • Siemens APOGEE PXC Compact (BACnet)
  • Siemens APOGEE PXC Compact (P2 Ethernet)
  • Siemens APOGEE PXC Modular (BACnet)
  • Siemens APOGEE PXC Modular (P2 Ethernet)
  • Siemens Capital Embedded AR Classic 431-422
  • Siemens Capital Embedded AR Classic R20-11
  • Siemens Desigo PXC00-E.D
  • Siemens Desigo PXC00-U
  • Siemens Desigo PXC001-E.D
  • Siemens Desigo PXC100-E.D
  • Siemens Desigo PXC12-E.D
  • Siemens Desigo PXC128-U
  • Siemens Desigo PXC200-E.D
  • Siemens Desigo PXC22-E.D
  • Siemens Desigo PXC22.1-E.D
  • Siemens Desigo PXC36.1-E.D
  • Siemens Desigo PXC50-E.D
  • Siemens Desigo PXC64-U
  • Siemens Desigo PXM20-E
  • Siemens Nucleus NET
  • Siemens Nucleus ReadyStart V3
  • Siemens Nucleus Source Code
  • Siemens SIMOTICS CONNECT 400
  • Siemens TALON TC Compact (BACnet)
  • Siemens TALON TC Modular (BACnet)

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel 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.