Multiple vulnerabilities in VMware ESXi



Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2025-41226
CVE-2025-41227
CVE-2025-41228
CWE-ID CWE-20
CWE-400
CWE-79
Exploitation vector Network
Public exploit N/A
Vulnerable software
 VMware ESXi
Operating systems & Components / Operating system

Vendor VMware, Inc

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU109485

Risk: Medium

CVSSv4.0: 2.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:H/E:U/U:Green]

CVE-ID: CVE-2025-41226

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote guest to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote guest can perform a denial of service attack against other guest VMs with VMware Tools running and guest operations enabled.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

VMware ESXi: ESXi70U1c-17325551 - ESXi80a-20842819

CPE2.3 External links

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25717


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Resource exhaustion

EUVDB-ID: #VU109486

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:U/U:Green]

CVE-ID: CVE-2025-41227

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A malicious guest can trigger resource exhaustion of the host process.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

VMware ESXi: ESXi70U1c-17325551 - ESXi80a-20842819

CPE2.3 External links

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25717


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Cross-site scripting

EUVDB-ID: #VU109487

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-41228

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

VMware ESXi: ESXi70U1c-17325551 - ESXi80a-20842819

CPE2.3 External links

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25717


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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