Active Exploitation of VMware vCenter Path Traversal Vulnerability CVE-2026-59310

A critical vulnerability in VMware vCenter, tracked as CVE-2026-59310, is being actively exploited, allowing attackers to execute arbitrary code via a path traversal flaw in the Syslog Server. This vulnerability, disclosed on July 30, 2026, was added to CISA's Known Exploited Vulnerabilities Catalog on August 18, 2026. Attackers are leveraging this flaw to gain full control over virtual infrastructures, with reports indicating at least 361 affected IP addresses. The exploitation escalated rapidly, with a public proof of concept released on August 17, 2026. A separate vulnerability, CVE-2026-59309, has also been identified but is considered possibly unrelated. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has issued warnings regarding the ongoing exploitation. Organizations using affected VMware vCenter deployments are urged to take immediate action to mitigate risks.

Key Points: • CVE-2026-59310 is a critical path traversal vulnerability in VMware vCenter. • Active exploitation allows attackers to execute arbitrary code on affected systems. • CISA has added this vulnerability to its Known Exploited Vulnerabilities Catalog.