Cortex XDR 9.3 End of Life Date
Cortex XDR 9.3 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
Cortex XDR 9.3 was released on July 26, 2026 and support is scheduled to end on May 16, 2027 — a planned supported lifespan of 10 months, shorter than the 1 year median for Cortex XDR releases. It is not an LTS release; Cortex XDR reserves longer patch windows for its LTS versions. Its most recent patch is 9.3.0, published July 26, 2026.
What does Cortex XDR 9.3 end of life mean?
When Cortex XDR 9.3 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: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Cortex XDR 9.3 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Cortex XDR 9.3 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.