CVEvulnerability

CVE-2021-21991

7.8 HIGH Published 2021-09-22 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-09-22
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
4.6 MEDIUM — AV:L/AC:L/Au:N/C:P/I:P/A:P

Description

The vCenter Server contains a local privilege escalation vulnerability due to the way it handles session tokens. A malicious actor with non-administrative user access on vCenter Server host may exploit this issue to escalate privileges to Administrator on the vSphere Client (HTML5) or vCenter Server vSphere Web Client (FLEX/Flash).

Affected configurations

• vmware cloud foundation (>= 3.0 < 3.10.2.2) • vmware cloud foundation (>= 4.0 < 4.3) • vmware vcenter server 6.5 • vmware vcenter server 6.7 • vmware vcenter server 7.0

References