CVE-2021-21976 is a post-authentication command injection vulnerability affecting multiple versions of VMware vSphere Replication (8.3.x, 8.2.x, 8.1.x, and 6.5.x). An authenticated administrator can exploit this flaw to achieve remote code execution. With a CVSS score of 7.2 (High), this vulnerability requires high privileges (PR:H) but has a low attack complexity (AC:L) and no user interaction (UI:N), leading to high impacts on confidentiality, integrity, and availability (C:H, I:H, A:H). There is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. Despite this, it has garnered some community discussion and media coverage, indicating awareness within the cybersecurity landscape.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 6.5.0, < 6.5.1.5CPE matchmatch criteria | cpe:2.3:a:vmware:vsphere_replication:*:*:*:*:*:*:*:* | ||
>= 8.1.0, < 8.1.2.3CPE matchmatch criteria | cpe:2.3:a:vmware:vsphere_replication:*:*:*:*:*:*:*:* | ||
>= 8.2.0, < 8.2.1.1CPE matchmatch criteria | cpe:2.3:a:vmware:vsphere_replication:*:*:*:*:*:*:*:* | ||
>= 8.3.0, < 8.3.1.2CPE matchmatch criteria | cpe:2.3:a:vmware:vsphere_replication:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.