CVE-2026-59310: Broadcom VMware vCenter Path Traversal Vulnerability
What it is
Broadcom VMware vCenter contains a path traversal vulnerability which could allow a threat actor with network access to vCenter to execute arbitrary code.
What to do
Treat this as urgent. Identify every affected system, starting with anything internet-facing, and apply the vendor fix or mitigation within days. If you cannot patch quickly, isolate or disable the affected service and watch for signs of compromise.
- Priority
- Act now: Patch or mitigate internet-facing systems within days.
- Severity (CVSS)
- 9.8 critical
- CISA assessment (SSVC)
- actively exploited; attackers can automate it at scale; total control of the affected system
- Exploit probability (EPSS, 30 days)
- 2.6%, higher than 84% of all CVEs
- Added to CISA KEV
- 18 August 2026
- CISA fix-by date
- 21 August 2026 (US federal agencies; a sensible deadline for everyone)
- Ransomware use
- Known
- Weakness
- CWE-22
References
- NIST NVD entry
- CISA KEV entry
- support.broadcom.com/web/ecx/support-content-notification/-/external/content/Sec
- medium.com/@quirso_de/active-exploitation-of-cve-2026-59310-361-victim-ips-acros
- medium.com/@quirso_de/global-exploitation-of-cve-2026-59310-by-suspected-chinese
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-59310
Sources: CISA Known Exploited Vulnerabilities · FIRST Exploit Prediction Scoring System (EPSS) · NIST National Vulnerability Database · CISA Vulnrichment (SSVC), via the CVE Program. This product uses data from the NVD API but is not endorsed or certified by the NVD. Summaries are machine-written from CISA’s description; treat the vendor’s advisory as the authority for fixes.