CVE-2021-20700 is a critical buffer overflow vulnerability affecting the Disk Agent component of NEC CLUSTERPRO X and EXPRESSCLUSTER X products, including their SingleServerSafe variants, version 4.3 and earlier. This flaw allows for unauthenticated remote code execution over the network, as indicated by its CVSS score of 9.8 (CRITICAL). While highly severe with a FAUCET Risk Score of 81/100, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.0, <= 4.3CPE matchmatch criteria | cpe:2.3:a:nec:clusterpro_x:*:*:*:*:*:windows:*:* | ||
>= 1.0, <= 4.3CPE matchmatch criteria | cpe:2.3:a:nec:clusterpro_x_singleserversafe:*:*:*:*:*:windows:*:* | ||
>= 1.0, <= 4.3CPE matchmatch criteria | cpe:2.3:a:nec:expresscluster_x:*:*:*:*:*:windows:*:* | ||
>= 1.0, <= 4.3CPE matchmatch criteria | cpe:2.3:a:nec:expresscluster_x_singleserversafe:*:*:*:*:*:windows:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.