What is CVE-2026-23255?

CVE-2026-23255 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-03-18.

How severe is CVE-2026-23255?

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

Vulnerability in Linux

CVE-2026-23255

In the Linux kernel, the following vulnerability has been resolved: net: add proper RCU protection to /proc/net/ptype Yin Fengwei reported an RCU stall in ptype_seq_show() and provided a patch. Real issue is that ptype_seq_next() and pt…

EPSS: 0.000 (7.5th 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 6.6.136, 6.18.10, 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Linux Linux_kernel — versions 2.6.12, 6.19

References

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

Frequently asked questions

What is CVE-2026-23255?: CVE-2026-23255 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-03-18.
How severe is CVE-2026-23255?: Medium severity. CVSS v3 base score is 5.5 out of 10.