CVE-2020-277386.5MediumCWE-788

CVE-2020-27738: Siemens APOGEE PXC Compact (BACnet) vulnerability

Siemens · APOGEE PXC Compact (BACnet)

Affected: Siemens APOGEE PXC Compact (BACnet) · Exploitation: possible (1 to 10%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

4.1%probability of exploitation in the next 30 days

90th percentile

050100

Higher than 90% of scored CVEs

6.5MediumCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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 < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.3), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). The DNS domain name record decompression functionality does not properly validate the pointer offset values. The parsing of malformed responses could result in a read access past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to cause a denial-of-service condition.

Affected products11

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Siemens · APOGEE PXC Compact (BACnet)All versions < V3.5.5
Siemens · APOGEE PXC Compact (P2 Ethernet)All versions < V2.8.20
Siemens · APOGEE PXC Modular (BACnet)All versions < V3.5.5
Siemens · APOGEE PXC Modular (P2 Ethernet)All versions < V2.8.20
Siemens · Nucleus NETAll versions
Siemens · Nucleus ReadyStart V3All versions < V2017.02.3
Siemens · Nucleus ReadyStart V4All versions < V4.1.0
Siemens · Nucleus Source CodeVersions including affected DNS modules
Siemens · SIMOTICS CONNECT 400All versions < V0.5.0.0
Siemens · TALON TC Compact (BACnet)All versions < V3.5.5
Siemens · TALON TC Modular (BACnet)All versions < V3.5.5

On the Atlas

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Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Access of Memory Location After End of Buffer · Memory Corruption
Vendor: Siemens
Published: April 2021
Band: Possible (1 to 10%), April 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2020-27738 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.