#VU105280 Out-of-bounds read in VMware ESXi - CVE-2025-22226

Vulnerability identifier: #VU105280

Vulnerability risk: High

CVSSv4.0: 2.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-22226

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
VMware ESXi
Operating systems & Components / Operating system

Vendor: VMware, Inc

Description

The vulnerability allows a malicious guest to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in HGFS. A malicious guest can trigger an out-of-bounds read error and read contents of memory on the system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

VMware ESXi: ESXi 6.7 P06 - 8.0

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External links
https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25390

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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