SB2026073025 - Two RCE vulnerabilities in VMware vCenter Server

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Main Vulnerability Database SB2026073025

SB2026073025 - Two RCE vulnerabilities in VMware vCenter Server

Published: July 30, 2026

Security Bulletin ID SB2026073025
CSH Severity
Critical
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Critical 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Path traversal (CVE-ID: CVE-2026-59310)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Red


The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the Syslog server. A remote non-authenticated attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise the entire system.


2) Improper authentication (CVE-ID: CVE-2026-59309)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Red


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in the VMware Directory Service. A remote attacker can bypass authentication process and gain unauthorized access to the application.


Remediation

Install update from vendor's website.

References