CVE-2021-21974highobserved exploitationCWE-787

CVE-2021-21974: high-severity vulnerability in VMware Cloud Foundation

Published · Updated

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

75Vexday Risk Score

Prioritize patching. It exploitation observed in the wild, has a public proof of concept and 2 threat group(s) use it.

ssvc Actcvss 8.8epss 45%
from disclosure to weapon90 days
Published on NVDFeb 24
1st PoC+90d
Observed exploitation+709d
Who exploits it — 2

Groups known to exploit this vulnerability (MITRE ATT&CK attribution).

Ransomwareesxiargs group leak site
OpenSLP as used in ESXi (7.0 before ESXi70U1c-17325551, 6.7 before ESXi670-202102401-SG, 6.5 before ESXi650-202102101-SG) has a heap-overflow vulnerability. A malicious actor residing within the same network segment as ESXi who has access to port 427 may be able to trigger the heap-overflow issue in OpenSLP service resulting in remote code execution.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H