9.8

CVE-2021-22049: vmware vcenter_server Server-Side Request Forgery (SSRF)

CVSS: 9.8v3.1CriticalModified
Published 24-11-2021Last modified 03-08-2024

Vulnerability summary

CVE-2021-22049 is a critical (CVSS 9.8) Server-Side Request Forgery (SSRF) vulnerability in vmware vcenter_server. EPSS estimates a 1.73% chance of exploitation in the next 30 days, higher than 77.2% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
1.73%
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. 24-11-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

The vSphere Web Client (FLEX/Flash) contains an SSRF (Server Side Request Forgery) vulnerability in the vSAN Web Client (vSAN UI) plug-in. A malicious actor with network access to port 443 on vCenter Server may exploit this issue by accessing a URL request outside of vCenter Server or accessing an internal service.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.73%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

0.00 pp

From 1.73% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.73%

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

1 vendor · 1 product

References

1 links