CVE-2021-21999

highpriority · track · 32EPSS 0.015 · 74 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.47% (74th) EPSS

CVSS 7.2 · high

Is it mine?

9 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

VMware Tools for Windows (11.x.y prior to 11.2.6), VMware Remote Console for Windows (12.x prior to 12.0.1) , VMware App Volumes (2.x prior to 2.18.10 and 4 prior to 2103) contain a local privilege escalation vulnerability. An attacker with normal access to a virtual machine may exploit this issue by placing a malicious file renamed as `openssl.cnf' in an unrestricted directory which would allow code to be executed with elevated privileges.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.8highAV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-427USprimaryCWE-428US

affected products (9)

Products and version ranges known to be affected.

n/a VMware Tools for Windows, VMware Remote Console for Windows and VMware App Volumes≤ VMware Tools for Windows (11.x.y prior to 11.2.6), VMware Remote Console for Windows (12.x prior to 12.0.1) , VMware App Volumes (2.x prior to 2.18.10 and 4 prior to 2103)enisa_euvdEU
Broadcom Inc. VMware Remote Console (VMRC)≤ 12.0.1fstec_bduRU
Broadcom Inc. VMware Tools≤ 11.2.6fstec_bduRU
Omnissa Omnissa App Volumes≤ 2103fstec_bduRU
Omnissa Omnissa App Volumes≤ 2.18.10fstec_bduRU
vmware app volumes2.0 → 2.18.10nvdUScpe:2.3:a:vmware:app_volumes:*:*:*:*:*:*:*:*
vmware app volumes4 → 2103nvdUScpe:2.3:a:vmware:app_volumes:*:*:*:*:*:*:*:*
vmware remote console12.0.0 → 12.0.1nvdUScpe:2.3:a:vmware:remote_console:*:*:*:*:*:*:*:*
vmware tools11.0.0 → 11.2.6nvdUScpe:2.3:a:vmware:tools:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2021-06-23modified 2026-06-17

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+1382 more

references (10)

External citations — patches, advisories, analysis.

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