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Critical severity · published Nov 3, 2021
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…
9.8
CVSS
2.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CX
Clusterpro X · Nec
1.0 through 4.3 · source: NVD
CX
Clusterpro X Singleserversafe · Nec
1.0 through 4.3 · source: NVD
EX
Expresscluster X · Nec
1.0 through 4.3 · source: NVD
EX
Expresscluster X Singleserversafe · Nec
1.0 through 4.3 · source: NVD
Affected product
CX
Clusterpro X
Nec
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20704
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-20704
jpn.nec.com
https://jpn.nec.com/security-info/secinfo/nv21-015_en.html
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