Which products and versions are affected by CVE-2021-21978?

Affected: View Planner (Vmware) versions 4.6, >= VMware View Planner 4.x prior to 4.6 Security Patch 1. The full list is in the CVE brief.

Is CVE-2021-21978 being exploited in the wild?

It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023.

Is CVE-2021-21978 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2021-21978?

Public exploit code is available.

Is there a fix for CVE-2021-21978?

Fixed versions are available, including View Planner 4.6.

How urgently should CVE-2021-21978 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2021-21978

CriticalExploitedPublic exploit

VMware View Planner 4.x prior to 4.6 Security Patch 1 contains a remote code execution vulnerability.

Published Mar 5, 2021 · Updated Aug 3, 2024

Key Facts

Patch immediately

CVE-2021-21978 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting View Planner (Vmware).
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023. Public exploit code is available.
EPSS estimates a 99% probability of exploitation in the next 30 days.
Fixed versions are available, including View Planner 4.6.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

9.8

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

EPSS (30-day exploit likelihood)

99%

Higher than 99.9% of all scored CVEs

Exploited in the wild

Yes

2 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2021-21978 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

VMware View Planner 4.x prior to 4.6 Security Patch 1 contains a remote code execution vulnerability. Improper input validation and lack of authorization leading to arbitrary file upload in logupload web application. An unauthorized attacker with network access to View Planner Harness could upload and execute a specially crafted file leading to remote code execution within the logupload container.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
Industry KEV feed	Dec 3, 2023	n/a	Not reported
CIRCL KEV	Oct 14, 2023	n/a	Not reported

Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Affected Products

3 affected entries in total

Product	Affected versions	Fixed in
View PlannerVmware	4.6, >= VMware View Planner 4.x prior to 4.6 Security Patch 1	4.6

Patched Releases

View Planner

4.6

Timeline

Publicly disclosed
Mar 5, 2021
Added to CIRCL KEV
Oct 14, 2023
Added to Industry KEV feed
Dec 3, 2023
Last updated
Aug 3, 2024

Weakness Type

CWE-20 Improper Input Validation
CWE-862 Missing Authorization

References

15 more references in the full CVE brief

FAQ

Common Questions.

VMware View Planner 4.x prior to 4.6 Security Patch 1 contains a remote code execution vulnerability.
Affected: View Planner (Vmware) versions 4.6, >= VMware View Planner 4.x prior to 4.6 Security Patch 1. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Oct 14, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including View Planner 4.6.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2021-21978 Running On Your Attack Surface?

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