Vulnerability in Siemens Apogee Mbc (Ppc) (Bacnet)
CVE-2021-31885
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), 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 ReadyStart V4 (All versions < V4.1.1), Nucleus Source Code (All versions), PLUSCONTROL 1st Gen (All versions), TALON TC Compact (BACnet) (All versions < V3.5.4), TALON TC Modular (BACnet) (All versions < V3.5.4). TFTP server application allows for reading the contents of the TFTP memory buffer via sending malformed TFTP commands. (FSMD-2021-0009)
EPSS: 0.012 (67.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Siemens Apogee Mbc (Ppc) (Bacnet) — versions All versions
- Siemens Apogee Mbc (Ppc) (P2 Ethernet) — versions All versions
- Siemens Apogee Mec (Ppc) (Bacnet) — versions All versions
- Siemens Apogee Mec (Ppc) (P2 Ethernet) — versions All versions
- Siemens Apogee_modular_building_controller
- Siemens Apogee_modular_building_controller_firmware
- Siemens Apogee_modular_equiment_controller
- Siemens Apogee_modular_equiment_controller_firmware
- Siemens Apogee_pxc_compact
- Siemens Apogee Pxc Compact (Bacnet) — versions All versions < V3.5.4
Weakness classification (CWE)
References
- productcert@siemens.com (x_refsource_MISC, Vendor Advisory)
- productcert@siemens.com (x_refsource_MISC, Vendor Advisory)
- productcert@siemens.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-31885?
- CVE-2021-31885 is a high-severity vulnerability in Siemens Apogee Mbc (Ppc) (Bacnet), classified under Buffer Access with Incorrect Length Value. CVSS score: 7.5/10. Published 2021-11-09.
- How severe is CVE-2021-31885?
- High severity. CVSS v3 base score is 7.5 out of 10.