Exploited CVEs / Broadcom / CVE-2026-59310
CVE-2026-59310
Broadcom VMware vCenter Path Traversal Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2026-08-21 (that deadline has passed); treat that date as the outer bound for your own environment. The fix is in the vendor advisory: Broadcom (VMware) Security Advisories, linked below.
Risk summary
Actively exploited Broadcom VMware vCenter vulnerability, Critical severity, CVSS v3 9.8. Added to the CISA KEV catalog 2026-08-18.
Senserva AI Opinion and rich prompt for CVE-2026-59310
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Updated September 3, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Full tracking and change history for CVE-2026-59310
- Published
- 2026-08-18
- Last revised
- 2026-08-18
- Changes tracked
- 1
Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.
The strongest signal is the CISA KEV listing added on 2026-08-18, the same day Severity briefly dropped to 0.0 before returning to 9.8, confirming active exploitation despite the scoring blip. EPSS then climbed steadily, from 1.1% at first scoring to 2.4% on 2026-08-19 and up to 45.9% by 2026-08-24, showing rapidly increasing real-world exploitation likelihood. Admins should treat this as urgent and remediate now.
Drawn by Senserva Vivid from the Senserva change record. Hover any point for its date and value.
- 2026-08-18 CVSS 9.8 to 0.0; CVSS 0.0 to 9.8; EPSS first scored at 1.1%; added to the CISA KEV catalog by CISA
- 2026-08-19 EPSS 1.1% to 2.4%
- 2026-08-24 EPSS 2.4% to 45.9%
Recorded by Senserva on the dates shown, from CISA KEV and FIRST EPSS. This is what moved and when, which neither the vendor advisory nor NVD publishes.
CISA required action
Federal (BOD 22-01) remediation due date: 2026-08-21 (past due).
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.
Official fix for CVE-2026-59310
The authoritative fix and affected-version list are published by the vendor. Find the VMware vCenter advisory on Broadcom (VMware) Security Advisories.
Common questions about CVE-2026-59310
Is CVE-2026-59310 actively exploited?
Yes. CVE-2026-59310 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2026-08-18, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 46%.
What is the CISA deadline and required action for CVE-2026-59310?
CISA set the federal (BOD 22-01) remediation due date at 2026-08-21, which has passed; treat any unremediated system as overdue. The verbatim 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.
What fixes CVE-2026-59310?
The authoritative fix is in the vendor advisory: see Broadcom (VMware) Security Advisories for the patched VMware vCenter versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.
Can I ask my own AI about CVE-2026-59310?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2026-59310's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed once a day (early morning US Central).
Scope and sources
- More exploited Broadcom CVEs
All Broadcom exploited CVEs on one page: Broadcom vulnerabilities actively exploited.
- Authoritative references
Every actively exploited CVE, searchable with due dates and CSV export: the exploited-CVE tracker. The newest additions: exploited this week.