Exploited CVEs / NETGEAR / CVE-2020-26919
CVE-2020-26919
Netgear JGS516PE Devices Missing Function Level Access Control Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2022-05-03 (that deadline has passed); treat that date as the outer bound for your own environment. Check the vendor security advisory for the fix.
Risk summary
Actively exploited NETGEAR JGS516PE Devices vulnerability, Critical severity, CVSS 9.8. Added to the CISA KEV catalog 2021-11-03.
Senserva AI Opinion for CVE-2020-26919
Netgear JGS516PE switches expose management functions without proper access control, rated Critical (CVSS 9.8) with a 57 percent EPSS score and confirmed exploitation. A switch compromise gives an attacker a quiet vantage point over every device plugged into it, including VLAN manipulation and traffic interception. Small-office switches like this are almost never inventoried or patched.
Do this: Update JGS516PE firmware and confirm switch management interfaces are restricted to an admin VLAN.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2020-26919
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Updated August 14, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Full tracking and change history for CVE-2020-26919
- Published
- 2021-11-03
- Last revised
- 2021-11-03
- 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.
Drawn by Senserva Vivid from the Senserva change record. Hover any point for its date and value.
- 2021-11-03 added to the CISA KEV catalog by CISA
- 2026-07-17 CVSS 0.0 to 9.8; EPSS first scored at 57.2%
- 2026-07-23 EPSS 57.2% to 57.5%
- 2026-08-07 EPSS 57.5% to 57.2%
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: 2022-05-03 (past due).
Apply updates per vendor instructions.
Official fix for CVE-2020-26919
Check the vendor's security advisory channel for the patched JGS516PE Devices versions and workarounds.
Common questions about CVE-2020-26919
Is CVE-2020-26919 actively exploited?
Yes. CVE-2020-26919 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2021-11-03, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 57%.
What is the CISA deadline and required action for CVE-2020-26919?
CISA set the federal (BOD 22-01) remediation due date at 2022-05-03, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply updates per vendor instructions.
What fixes CVE-2020-26919?
Check the vendor's security advisory for the patched JGS516PE Devices 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-2020-26919?
Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2020-26919'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 twice a day (5 AM and 3 PM US Central).
Scope and sources
- More exploited NETGEAR CVEs
All NETGEAR exploited CVEs on one page: NETGEAR 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.