Buffer overflow in Siemens Apogee Mbc (Ppc) (P2 Ethernet)
CVE-2021-27391
A vulnerability has been identified in APOGEE MBC (PPC) (P2 Ethernet) (All versions >= V2.6.3), APOGEE MEC (PPC) (P2 Ethernet) (All versions >= V2.6.3), APOGEE PXC Compact (BACnet) (All versions < V3.5.3), APOGEE PXC Compact (P2 Ethernet)…
Vulnerability class: Buffer Overflow
EPSS: 0.034 (87.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Siemens Apogee Mbc (Ppc) (P2 Ethernet) — versions All versions >= V2.6.3
- Siemens Apogee_mbc_\(ppc\)_\(p2_ethernet\)
- Siemens Apogee_mbc_\(ppc\)_\(p2_ethernet\)_firmware
- Siemens Apogee Mec (Ppc) (P2 Ethernet) — versions All versions >= V2.6.3
- Siemens Apogee_mec_\(ppc\)_\(p2_ethernet\)
- Siemens Apogee_mec_\(ppc\)_\(p2_ethernet\)_firmware
- Siemens Apogee_pxc_bacnet_automation_controller
- Siemens Apogee_pxc_bacnet_automation_controller_firmware
- Siemens Apogee Pxc Compact (Bacnet) — versions All versions < V3.5.3
- Siemens Apogee Pxc Compact (P2 Ethernet) — versions All versions >= V2.8
Weakness classification (CWE)
References
- productcert@siemens.com (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-27391?
- CVE-2021-27391 is a critical-severity vulnerability in Siemens Apogee Mbc (Ppc) (P2 Ethernet), classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2021-09-14.
- How severe is CVE-2021-27391?
- Critical severity. CVSS v3 base score is 9.8 out of 10.