CVE-2021-31884Not scoredCWE-170

CVE-2021-31884: Siemens APOGEE MBC (PPC) (BACnet) vulnerability

Siemens · APOGEE MBC (PPC) (BACnet)

Affected: Siemens APOGEE MBC (PPC) (BACnet) · Exploitation: possible (1 to 10%)

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

1.5%probability of exploitation in the next 30 days

74th percentile

050100

Higher than 74% of scored CVEs

Not scored yet. The CVE record carries no CVSS score.

DescriptionCVE.org

A vulnerability has been identified in APOGEE MBC (PPC) (BACnet) (All versions), APOGEE MBC (PPC) (P2 Ethernet) (All versions), APOGEE MEC (PPC) (BACnet) (All versions), APOGEE MEC (PPC) (P2 Ethernet) (All versions), APOGEE PXC Compact (BACnet) (All versions < V3.5.4), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.19), APOGEE PXC Modular (BACnet) (All versions < V3.5.4), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.19), Capital VSTAR (All versions with enabled Ethernet options), Desigo PXC00-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC00-U (All versions >= V2.3 and < V6.30.016), Desigo PXC001-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC100-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC12-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC128-U (All versions >= V2.3 and < V6.30.016), Desigo PXC200-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC22.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC36.1-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC50-E.D (All versions >= V2.3 and < V6.30.016), Desigo PXC64-U (All versions >= V2.3 and < V6.30.016), Desigo PXM20-E (All versions >= V2.3 and < V6.30.016), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.4), Nucleus Source Code (All versions), TALON TC Compact (BACnet) (All versions < V3.5.4), TALON TC Modular (BACnet) (All versions < V3.5.4). The DHCP client application assumes that the data supplied with the “Hostname” DHCP option is NULL terminated. In cases when global hostname variable is not defined, this may lead to Out-of-bound reads, writes, and Denial-of-service conditions. (FSMD-2021-0014)

Affected products20

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

Siemens · APOGEE MBC (PPC) (BACnet)All versions
Siemens · APOGEE MBC (PPC) (P2 Ethernet)All versions
Siemens · APOGEE MEC (PPC) (BACnet)All versions
Siemens · APOGEE MEC (PPC) (P2 Ethernet)All versions
Siemens · APOGEE PXC Compact (BACnet)All versions < V3.5.4
Siemens · APOGEE PXC Compact (P2 Ethernet)All versions < V2.8.19
Siemens · APOGEE PXC Modular (BACnet)All versions < V3.5.4
Siemens · APOGEE PXC Modular (P2 Ethernet)All versions < V2.8.19
Siemens · Capital VSTARAll versions with enabled Ethernet options
Siemens · Desigo PXC00-E.DAll versions >= V2.3 and < V6.30.016
Siemens · Desigo PXC00-UAll versions >= V2.3 and < V6.30.016
Siemens · Desigo PXC001-E.DAll versions >= V2.3 and < V6.30.016
Siemens · Desigo PXC100-E.DAll versions >= V2.3 and < V6.30.016
Siemens · Desigo PXC12-E.DAll versions >= V2.3 and < V6.30.016
Siemens · Desigo PXC128-UAll versions >= V2.3 and < V6.30.016
Siemens · Desigo PXC200-E.DAll versions >= V2.3 and < V6.30.016
Siemens · Desigo PXC22-E.DAll versions >= V2.3 and < V6.30.016
Siemens · Desigo PXC22.1-E.DAll versions >= V2.3 and < V6.30.016
Siemens · Desigo PXC36.1-E.DAll versions >= V2.3 and < V6.30.016
Siemens · Desigo PXC50-E.DAll versions >= V2.3 and < V6.30.016

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Possible (1 to 10%). EPSS between 1% and 10%.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Improper Null Termination · Memory Corruption
Vendor: Siemens
Published: November 2021
Band: Possible (1 to 10%), November 2021

CoverageNo articles yet

No CyberSIXT article names CVE-2021-31884 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.