High severity · published Nov 24, 2021
CVE-2021-21980
The vSphere Web Client (FLEX/Flash) contains an unauthorized arbitrary file read vulnerability
7.5
CVSS
4.7%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.7% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VS
vCenter Server · VMware
6.5; 6.5; 6.5; 6.5; 6.5; 6.5; +29 more · source: NVD
CF
Cloud Foundation · Vmware
3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21980
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21980
Patch
https://www.vmware.com/security/advisories/VMSA-2021-0027.html
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