Cisco NX-OS 10.3 · Version Status
Cisco NX-OS 10.3 End of Life Date
Cisco NX-OS 10.3 end-of-life date, support status, and CVE risk. Dates read at the vendor's own lifecycle pages (cisco.com); the source of each date is on the product page.
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Cisco NX-OS 10.3 reaches end of life on February 28, 2027. Plan your migration now — 140 days remaining.
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EOL Date
Feb 28, 2027
140 days remaining
Latest Release
10.3
Standard release
Release Date
—
Cisco NX-OS 10.3 series
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 NX-OS 10.3 support is available
Commercial vendors offer security patches beyond EOL. Compare your options.
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What does Cisco NX-OS 10.3 end of life mean?
When Cisco NX-OS 10.3 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: A CVE-based scan does not show the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Some scanners flag unsupported versions of common products, but coverage varies, and none of them give you the date in advance. Running Cisco NX-OS 10.3 past its EOL date creates a growing attack surface that a clean scan result does not rule out.
Migrate to Cisco NX-OS 10.6 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Cisco NX-OS 10.3 reach end of life?
Cisco NX-OS 10.3 reaches end of life on February 28, 2027. That is 140 days remaining.
Is Cisco NX-OS 10.3 still supported?
Cisco NX-OS 10.3 is still supported but approaching end of life on February 28, 2027. Begin planning your migration now.
What should I upgrade to from Cisco NX-OS 10.3?
The recommended upgrade from Cisco NX-OS 10.3 is
Cisco NX-OS 10.6 — the latest actively supported version. Check the
Cisco NX-OS full timeline for all supported versions.
What are the security risks of running Cisco NX-OS 10.3 past EOL?
When Cisco NX-OS 10.3 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no vendor fix. A CVE-based scan does not show this — it is the CVE blind spot; some scanners flag unsupported versions of common products, but coverage varies and none give the date in advance. Organizations running EOL Cisco NX-OS should migrate immediately or implement compensating controls.