Cisco Catalyst SD-WAN 20.9 · Version Status
Cisco Catalyst SD-WAN 20.9 End of Life Date
Cisco Catalyst SD-WAN 20.9 end-of-life date, support status, and CVE risk. Data reconciled from official vendor documentation and endoflife.date at every build; the source of each date is on the product page.
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Cisco Catalyst SD-WAN 20.9 reaches end of life on September 30, 2026. Plan your migration now — 21 days remaining.
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EOL Date
Sep 30, 2026
21 days remaining
Latest Release
20.9
Standard release
Release Date
—
Cisco Catalyst SD-WAN 20.9 series
Extended Support
Mar 30, 2027
Extended support
Attack Surface
10/30 Medium tier
CISA KEV Exposure
20/20 Named in CISA KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
Extended Support
Extended Cisco Catalyst SD-WAN 20.9 support is available
Commercial vendors offer security patches beyond EOL. Compare your options.
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All Cisco Catalyst SD-WAN Versions
| Version | Latest | EOL Date | Status |
|---|
| 19.1 |
19.1 |
Aug 30, 2022 |
EOL |
| 19.2 |
19.2 |
Aug 30, 2022 |
EOL |
| 19.3 |
19.3 |
Aug 30, 2022 |
EOL |
| 20.1 |
20.1 |
Jul 15, 2021 |
EOL |
| 20.3 |
20.3 |
Sep 30, 2023 |
EOL |
| 20.4 |
20.4 |
Jan 28, 2022 |
EOL |
| 20.5 |
20.5 |
May 30, 2022 |
EOL |
| 20.6 |
20.6 |
Sep 30, 2024 |
EOL |
What does Cisco Catalyst SD-WAN 20.9 end of life mean?
When Cisco Catalyst SD-WAN 20.9 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Cisco Catalyst SD-WAN 20.9 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Cisco Catalyst SD-WAN 26.1 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Cisco Catalyst SD-WAN 20.9 reach end of life?
Cisco Catalyst SD-WAN 20.9 reached end of life on September 30, 2026. That is 21 days remaining.
Is Cisco Catalyst SD-WAN 20.9 still supported?
Cisco Catalyst SD-WAN 20.9 is still supported but approaching end of life on September 30, 2026. Begin planning your migration now.
What should I upgrade to from Cisco Catalyst SD-WAN 20.9?
The recommended upgrade from Cisco Catalyst SD-WAN 20.9 is
Cisco Catalyst SD-WAN 26.1 — the latest actively supported version. Check the
Cisco Catalyst SD-WAN full timeline for all supported versions.
What are the security risks of running Cisco Catalyst SD-WAN 20.9 past EOL?
When Cisco Catalyst SD-WAN 20.9 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Cisco Catalyst SD-WAN should migrate immediately or implement compensating controls.