Vulnerability Details : CVE-2020-28388
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 ReadyStart V3 (All versions < V2012.12), Nucleus Source Code (All versions), PLUSCONTROL 1st Gen (All versions), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). Initial Sequence Numbers (ISNs) for TCP connections are derived from an insufficiently random source. As a result, the ISN of current and future TCP connections could be predictable. An attacker could hijack existing sessions or spoof future ones.
Products affected by CVE-2020-28388
- cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:nucleus_readystart:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:nucleus_source_code:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:capital_vstar:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:pluscontrol_1st_gen:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-28388
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 51 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-28388
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
3.9
|
1.4
|
NIST | |
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L |
3.9
|
2.5
|
Siemens AG |
CWE ids for CVE-2020-28388
-
An exact value or random number can be precisely predicted by observing previous values.Assigned by: productcert@siemens.com (Secondary)
References for CVE-2020-28388
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