CRITICAL • CVSS 3.1

CVE-2026-59310

CISA KNOWN EXPLOITED

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.

Prioritization

NVD CVSS: 9.8
Published: Jul 30, 2026 9:16 AM EDT
Modified: Aug 19, 2026 12:17 AM EDT
CISA KEV: Yes
KEV due date: 2026-08-21

CISA required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Red Hat context

No Red Hat-specific cached context is available for this record.

DEFENSIVE REMEDIATION WORKFLOW

Recommended response

Treat as priority because it appears in CISA Known Exploited Vulnerabilities data; follow the required action and due date where applicable.
Identify affected assets with Qualys, Tanium, software inventory, CMDB or configuration-management data.
Confirm package/application applicability before change execution; CVSS alone does not prove that every host is vulnerable.
Patch, upgrade, rehydrate or apply a vendor-approved mitigation through controlled change. GraceITS can automate eligible waves with Ansible/Tanium.
Rescan after remediation and reconcile remaining exceptions, false positives, unsupported systems and compensating controls.

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