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CVE-2021-22015

36
FAUCET Score

CVE-2021-22015 is a local privilege escalation vulnerability in VMware vCenter Server and Cloud Foundation, stemming from improper file and directory permissions. An authenticated, non-administrative local user can exploit this to gain root privileges on the vCenter Server Appliance. With a CVSS score of 7.8 (High), this vulnerability has a low attack complexity and no user interaction, allowing for high impact on confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, a Metasploit module exists for exploitation, and it has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.0, < 5.0CPE matchmatch criteria
cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:*
6.5CPE matchmatch criteria
cpe:2.3:a:vmware:vcenter_server:6.5:-:*:*:*:*:*:*
6.7CPE matchmatch criteria
cpe:2.3:a:vmware:vcenter_server:6.7:-:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.94%
Probability of exploitation in next 30 days
EPSS Percentile
78.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Metasploit: VMware vCenter vScalation Priv Esc · Sep 21, 2021
This CVE's current EPSS score of 0.0194 is in the 96th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

vmwarepatch availablevia nvd_reference
View patch

References

packetstormsecurity.com / files/170116/VMware-vCenter-vScalation-Privilege-Escalation.html
ExploitThird Party AdvisoryVDB Entry
vmware.com / security/advisories/VMSA-2021-0020.html
PatchVendor Advisory