What is CVE-2026-23259?

CVE-2026-23259 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-03-18.

How severe is CVE-2026-23259?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

CVE-2026-23259

In the Linux kernel, the following vulnerability has been resolved: io_uring/rw: free potentially allocated iovec on cache put failure If a read/write request goes through io_req_rw_cleanup() and has an allocated iovec attached and fails…

EPSS: 0.000 (5.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux — versions a9165b83c1937eeed1f0c731468216d6371d647f, 6.10, 0
Linux Linux_kernel — versions 6.19

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2026-23259?: CVE-2026-23259 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-03-18.
How severe is CVE-2026-23259?: Medium severity. CVSS v3 base score is 5.5 out of 10.