SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-21980

The vSphere Web Client (FLEX/Flash) contains an unauthorized arbitrary file read vulnerability.

HIGH 7.5EPSS 4.60%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The vSphere Web Client (FLEX/Flash) contains an unauthorized arbitrary file read vulnerability. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to gain access to sensitive information.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
4.60% probability · 91th percentile
CISA KEV
Not listed
Affected
vmware/cloud foundation · vmware/vcenter server
Source
security@vmware.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.