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01 Record

CVE-2020-27738

A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions <

MediumPUBLISHEDCNA: siemens
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C

02 Description

A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions <

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
3.65% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 89.1% of scored records. A rank, not a probability.
NVD base score
7.4 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-04-22 20:42Z5 YR AGO
Last updated
2024-08-04 16:18Z2 YR AGO
Reserved
2020-10-26
Assigning CNA
siemens
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C
Weaknesses
  • CWE-788Access of Memory Location After End of BufferBase
  • CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
Data version
5.1
Document digest
a50a2f2639ee3b0cb102e46b13c3d0985825f8f6c5a27b556911503c6752a6c5

05 Affected products

VendorProductVersionsPlatforms
SiemensAPOGEE PXC Compact (BACnet)All versions < V3.5.5—
SiemensAPOGEE PXC Compact (P2 Ethernet)All versions < V2.8.20—
SiemensAPOGEE PXC Modular (BACnet)All versions < V3.5.5—
SiemensAPOGEE PXC Modular (P2 Ethernet)All versions < V2.8.20—
SiemensNucleus NETAll versions—
SiemensNucleus ReadyStart V3All versions < V2017.02.3—
SiemensNucleus ReadyStart V4All versions < V4.1.0—
SiemensNucleus Source CodeVersions including affected DNS modules—
SiemensSIMOTICS CONNECT 400All versions < V0.5.0.0—
SiemensTALON TC Compact (BACnet)All versions < V3.5.5—
SiemensTALON TC Modular (BACnet)All versions < V3.5.5—

06 References