Vulnerability Details : CVE-2021-20704
Buffer overflow vulnerability in the compatible API with previous versions CLUSTERPRO X 4.3 for Windows and earlier, EXPRESSCLUSTER X 4.3 for Windows and earlier, CLUSTERPRO X 4.3 SingleServerSafe for Windows and earlier, EXPRESSCLUSTER X 4.3 SingleServerSafe for Windows and earlier allows attacker to remote code execution via a network.
Vulnerability category: OverflowExecute code
Products affected by CVE-2021-20704
- NEC » Expresscluster X » For WindowsVersions from including (>=) 1.0 and up to, including, (<=) 4.3cpe:2.3:a:nec:expresscluster_x:*:*:*:*:*:windows:*:*
- cpe:2.3:a:nec:clusterpro_x:*:*:*:*:*:windows:*:*
- NEC » Clusterpro X Singleserversafe » For WindowsVersions from including (>=) 1.0 and up to, including, (<=) 4.3cpe:2.3:a:nec:clusterpro_x_singleserversafe:*:*:*:*:*:windows:*:*
- NEC » Expresscluster X Singleserversafe » For WindowsVersions from including (>=) 1.0 and up to, including, (<=) 4.3cpe:2.3:a:nec:expresscluster_x_singleserversafe:*:*:*:*:*:windows:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20704
0.66%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20704
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-20704
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20704
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https://jpn.nec.com/security-info/secinfo/nv21-015_en.html
Vendor Advisory
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