Is CVE-2026-23263 in the CISA KEV catalog?

No. CVE-2026-23263 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2026-23263?

CVE-2026-23263 has an EPSS score of 0.10% (1th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-23263?

Upgrade linux on debian unstable to 6.18.10-1 or later.

CVE & CISA-KEV Catalog

CVE-2026-23263

UNSCORED

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring/zcrx: fix page array leak d9f595b9a65e ("io_uring/zcrx: fix leaking pages on sg init fail") fixed a page leakage but didn't free the page array, release it as well.

How to fix

Remediation Available

linuxDebian

Fixed in:6.18.10-1CVE-2026-23263

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.10%probability of exploitation in 30 days

1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-19.