Auth bypass in VMware Carbon Black App Control

CVE-2021-21998

VMware Carbon Black App Control 8.0, 8.1, 8.5 prior to 8.5.8, and 8.6 prior to 8.6.2 has an authentication bypass. A malicious actor with network access to the VMware Carbon Black App Control management server might be able to obtain administrative access to the product without the need to authenticate.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.106 (95.7th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.7% 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-2021-21998: held from 0.106 to 0.106.

EPSS over last 30 days · oldest: 0.106 · newest: 0.106 · change: 0.000

Affected products

  • VMware Carbon Black App Control — versions 8.0, 8.1
  • VMware Carbon Black App Control (Appc) — versions VMware Carbon Black App Control 8.0, 8.1, 8.5 prior to 8.5.8, and 8.6 prior to 8.6.2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-21998?
CVE-2021-21998 is a critical-severity vulnerability in VMware Carbon Black App Control, classified under Improper Authentication. CVSS score: 9.8/10. Published 2021-06-23.
How severe is CVE-2021-21998?
Critical severity. CVSS v3 base score is 9.8 out of 10.