Resource exhaustion in VMware Cloud Foundation

CVE-2021-22050

ESXi contains a slow HTTP POST denial-of-service vulnerability in rhttpproxy. A malicious actor with network access to ESXi may exploit this issue to create a denial-of-service condition by overwhelming rhttpproxy service with multiple requests.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.8th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-22050: held from 0.023 to 0.023.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

  • VMware Cloud Foundation
  • VMware Esxi — versions 6.5, 6.7, 7.0
  • VMware Esxi And Cloud Foundation — versions VMware ESXi(7.0 U3 before ESXi70U3c-19193900, ESXi 6.7 ESXi670-202111101-SG and ESXi 6.5 before ESXi650-202110101-SG) and VMware Cloud Foundation (4.x before 4.4 and 3.x before 3.11)

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-22050?
CVE-2021-22050 is a high-severity vulnerability in VMware Cloud Foundation, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2022-02-16.
How severe is CVE-2021-22050?
High severity. CVSS v3 base score is 7.5 out of 10.