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Servers and applications

CVE-2021-21980

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.

Severity
High 7.5
Published
24 Nov 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
VMware vCenter ServerServers and applications · cpe:a:vmware:vcenter_server
  • Version 6.7-update_3o
  • Version 6.7-update_3n
  • Version 6.7-update_3m
  • Version 6.7-update_3l
All 35 release lines
  • Version 6.5-update_1b
  • Version 6.5-update_1c
  • Version 6.5-update_2b
  • Version 6.5-update_2c
  • Version 6.5
  • Version 6.5-update_1
  • Version 6.5-update_1d
  • Version 6.5-update_1e
  • Version 6.5-update_1g
  • Version 6.5-update_2
  • Version 6.5-update_2d
  • Version 6.5-update_2g
  • Version 6.5-update_3
  • Version 6.5-update_3d
  • Version 6.5-update_3f
  • Version 6.5-update_3k
  • Version 6.5-update_3n
  • Version 6.5-update_3p
  • Version 6.5-update_3q
  • Version 6.7-update_1b
  • Version 6.7-update_2a
  • Version 6.7-update_2c
  • Version 6.7-update_3a
  • Version 6.7-update_3b
  • Version 6.7
  • Version 6.7-update_1
  • Version 6.7-update_2
  • Version 6.7-update_3
  • Version 6.7-update_3f
  • Version 6.7-update_3g
  • Version 6.7-update_3j
  • Version 6.7-update_3l
  • Version 6.7-update_3m
  • Version 6.7-update_3n
  • Version 6.7-update_3o

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-21980
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-21980