Vulnerability Details CVE-2020-27009
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 < V5.2), Nucleus Source Code (Versions including affected DNS modules), 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 write past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to execute code in the context of the current process or cause a denial-of-service condition.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 70.9%
CVSS Severity
CVSS v3 Score 8.1
CVSS v2 Score 6.8
References
Products affected by CVE-2020-27009
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cpe:2.3:a:siemens:nucleus_net:-
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cpe:2.3:a:siemens:nucleus_source_code:-