8.2

CVE-2025-22225: VMware ESXi Arbitrary Write Vulnerability

CVSS: 8.2v3.1HighKEVRansomwareAnalyzed
Published 04-03-2025Last modified 04-08-2026
Open JSON

Vulnerability summary

CVE-2025-22225 is a high (CVSS 8.2) Out-of-bounds Write vulnerability in VMware ESXi. It is known to be exploited: CISA lists it, first on 04-03-2025. It has been used in ransomware campaigns. EPSS estimates a 1.02% chance of exploitation in the next 30 days, higher than 62.6% of scored vulnerabilities.

Overall risk
90/100
0100
Critical · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v3.1 (CVE.org)
EPSS score
1.02%
0%100%
Low · +0.02 pp in 30 days
KEVListedCISA
RansomwareKnown useFlagged by CISA
Public exploits0No public exploits recorded

Timeline

  1. 04-03-2025
    PublishedVulnerability first disclosed.
  2. 04-03-2025
    Added to CISA KEVVMware ESXi Arbitrary Write Vulnerability
  3. 25-03-2025
    CISA remediation dueApply mitigations per vendor instructions.
  4. 04-08-2026
    Last modifiedVulnerability information updated.

Description

VMware ESXi contains an arbitrary write vulnerability. A malicious actor with privileges within the VMX process may trigger an arbitrary kernel write leading to an escape of the sandbox.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.02%

Chance of exploitation in the next 30 days

Percentile

63%

Versus all other CVEs

30-day change

+0.02 pp

From 1.00% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.02%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
04-03-2025
Federal due date
25-03-2025
Ransomware

CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. support.broadcom.com/web/… nvd.nist.gov/vuln/detail/CVE-2025-22225

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Vmware4 products
  • cloud_foundationna
  • esxiEOL7.0 | 7.0:beta | 7.0:update_1 | 7.0:update_1a | 7.0:update_1b | 7.0:update_1c | 7.0:update_1d | 7.0:update_1e | 7.0:update_2 | 7.0:update_2a | 7.0:update_2c | 7.0:update_2d | 7.0:update_2e | 7.0:update_3 | 7.0:update_3c | 7.0:update_3d | 7.0:update_3e | 7.0:update_3f | 7.0:update_3g | 7.0:update_3i | 7.0:update_3j | 7.0:update_3k | 7.0:update_3l | 7.0:update_3m | 7.0:update_3n | 7.0:update_3o | 7.0:update_3p | 7.0:update_3q | 7.0:update_3r | 8.0 | 8.0:a | 8.0:b | 8.0:c | 8.0:update_1 | 8.0:update_1a | 8.0:update_1c | 8.0:update_1d | 8.0:update_2 | 8.0:update_2b | 8.0:update_2c | 8.0:update_3 | 8.0:update_3b | 8.0:update_3c
  • telco_cloud_infrastructure2.2 | 2.5 | 2.7 | 3.0
  • telco_cloud_platform2.0 | 2.5 | 2.7 | 3.0 | 4.0 | 4.0.1 | 5.0

1 vendor · 4 products

References

2 links