CVE-2021-21985 · netVigilance record NV21-0205

VMware vCenter Server Improper Input Validation

past due ransomware

What to do

Apply updates per vendor instructions.

CISA deadline 2021-11-17 · passed 4 years 9 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA

What happened

VMware vSphere Client contains an improper input validation vulnerability in the Virtual SAN Health Check plug-in, which is enabled by default in vCenter Server, which allows for remote code execution.

Who is affected

VMware vCenter Server. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.

Weakness class: CWE-20, CWE-470, CWE-918.

Timeline

2021-11-03
Added to CISA KEVExploitation in the wild confirmed by CISA
2021-11-17
CISA remediation deadlinepassed 4 years 9 months ago

Sources

NVD entry for CVE-2021-21985 nvd.nist.gov/vuln/detail/CVE-2021-21985
CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2021-21985