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Critical severity9.8NVD Advisory· Published Nov 3, 2021· Updated Jun 17, 2026

CVE-2021-20704

CVE-2021-20704

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.

Affected products

3
  • NEC/CLUSTERPRO Xllm-fuzzy
    Range: <=4.3
  • NEC/Expresscluster Xllm-fuzzy
    Range: <=4.3
  • NEC/CLUSTERPRO X for Linuxcpe-rescue
    Range: 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

Patches

Vulnerability mechanics

References

1

News mentions

0

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