CVE-2026-59310
Broadcom VMware vCenter Path Traversal Vulnerability
Broadcom VMware vCenter
VMware vCenter contains a directory traversal vulnerability in the Syslog server. A malicious actor with network access to vCenter may exploit this issue to execute arbitrary code.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 18 August 2026. US federal agencies were required to remediate it by 21 August 2026. CISA records this vulnerability as known to be used in ransomware campaigns.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 49.7%, which is higher than 98.8% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2026-59310 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2026-59310.
What does CVE-2026-59310 affect?
CVE-2026-59310 affects Broadcom VMware vCenter. VMware vCenter contains a directory traversal vulnerability in the Syslog server. A malicious actor with network access to vCenter may exploit this issue to execute arbitrary code.
How severe is CVE-2026-59310?
CVE-2026-59310 is rated CRITICAL with a CVSS base score of 9.8. EPSS puts the probability of exploitation in the next 30 days at 49.7%, higher than 98.8% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 21 August 2026.
How should organisations respond to CVE-2026-59310?
Apply the vendor patch for Broadcom VMware vCenter as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.