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CVE-2021-21991

nvd nist
Published: Sep 22, 2021Modified: Jun 17, 2026

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: NVD

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 (57)

Vmware
2 products
Cloud Foundation
Vcenter Server
Configuration A
57 vulnerable
Vulnerable SoftwareAffected Versions
Vmware
Cloud Foundation
From 3.0 to 3.10.2.2
Cloud Foundation
From 4.0 to 4.3
Vmware
Vcenter Server
Version 6.5
Vcenter Server
Version 6.5 a
Vcenter Server
Version 6.5 b
Vcenter Server
Version 6.5 c
Vcenter Server
Version 6.5 d
Vcenter Server
Version 6.5 e
Vcenter Server
Version 6.5 f
Vcenter Server
Version 6.5 update1
Vcenter Server
Version 6.5 update1b
Vcenter Server
Version 6.5 update1c
Vcenter Server
Version 6.5 update1d
Vcenter Server
Version 6.5 update1e
Vcenter Server
Version 6.5 update1g
Vcenter Server
Version 6.5 update2
Vcenter Server
Version 6.5 update2b
Vcenter Server
Version 6.5 update2c
Vcenter Server
Version 6.5 update2d
Vcenter Server
Version 6.5 update2g
Vcenter Server
Version 6.5 update3
Vcenter Server
Version 6.5 update3d
Vcenter Server
Version 6.5 update3f
Vcenter Server
Version 6.5 update3k
Vcenter Server
Version 6.5 update3n
Vcenter Server
Version 6.5 update3p
Vcenter Server
Version 6.7
Vcenter Server
Version 6.7
Vcenter Server
Version 6.7 a
Vcenter Server
Version 6.7 b
Vcenter Server
Version 6.7 d
Vcenter Server
Version 6.7 update1
Vcenter Server
Version 6.7 update1b
Vcenter Server
Version 6.7 update2
Vcenter Server
Version 6.7 update2a
Vcenter Server
Version 6.7 update2c
Vcenter Server
Version 6.7 update3
Vcenter Server
Version 6.7 update3a
Vcenter Server
Version 6.7 update3b
Vcenter Server
Version 6.7 update3f
Vcenter Server
Version 6.7 update3g
Vcenter Server
Version 6.7 update3j
Vcenter Server
Version 6.7 update3l
Vcenter Server
Version 6.7 update3m
Vcenter Server
Version 6.7 update3n
Vcenter Server
Version 7.0
Vcenter Server
Version 7.0 a
Vcenter Server
Version 7.0 b
Vcenter Server
Version 7.0 c
Vcenter Server
Version 7.0 d
Vcenter Server
Version 7.0 update1
Vcenter Server
Version 7.0 update1a
Vcenter Server
Version 7.0 update1c
Vcenter Server
Version 7.0 update1d
Vcenter Server
Version 7.0 update2
Vcenter Server
Version 7.0 update2a
Vcenter Server
Version 7.0 update2b

References (2)

Source: security@vmware.com
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory

Timeline

No history available yet.