Cybersecurity researchers have attributed the exploitation of a newly patched security flaw in Broadcom VMware vCenter to a suspected China-nexus advanced persistent threat (APT).
The attacks involve the exploitation of CVE-2026-59310 (CVSS score: 9.8), a severe directory-traversal vulnerability in the VMware vCenter server that could be weaponized by a malicious actor to execute arbitrary code. A fix for the flaw was released by Broadcom on July 29, 2026.
German incident response company QUIRSO assessed with moderate confidence that the exploitation campaign aimed at CVE-2026-59310 is operated by a Chinese-speaking threat actor, likely working in the UTC+08:00 time zone, which is predominantly used in Chinese-speaking regions.
“This assessment is based on the convergence of Chinese-language artifacts in attacker-created scripts, apparent reuse of research from a Chinese security publication, repeated operational use of Chinese-language tools and management software,…
