7.2

CVE-2021-21976: vmware vsphere_replication OS Command Injection

CVSS: 7.2v3.1HighModified
Published 11-02-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-21976 is a high (CVSS 7.2) OS Command Injection vulnerability in vmware vsphere_replication. EPSS estimates a 2.12% chance of exploitation in the next 30 days, higher than 81.6% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.2/10
010
High · v3.1 (NVD)
EPSS score
2.12%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-02-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

vSphere Replication 8.3.x prior to 8.3.1.2, 8.2.x prior to 8.2.1.1, 8.1.x prior to 8.1.2.3 and 6.5.x prior to 6.5.1.5 contain a post-authentication command injection vulnerability which may allow an authenticated admin user to perform a remote code execution.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.12%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

0.00 pp

From 2.12% on 20-09-2026

20-09-202620-10-2026
EPSS score
2.12%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Vmware1 product
  • vsphere_replication≥ 6.5.0, < 6.5.1.5 | ≥ 8.1.0, < 8.1.2.3 | ≥ 8.2.0, < 8.2.1.1 | ≥ 8.3.0, < 8.3.1.2

1 vendor · 1 product

References

1 links