What is CVE-2026-53225?

CVE-2026-53225 is a critical-severity vulnerability in Linux, classified under Use of Uninitialized Resource. CVSS score: 9.1/10. Published 2026-06-25.

How severe is CVE-2026-53225?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Linux

CVE-2026-53225

In the Linux kernel, the following vulnerability has been resolved: sctp: fix uninit-value in __sctp_rcv_asconf_lookup() __sctp_rcv_asconf_lookup() in net/sctp/input.c only checks that the ASCONF chunk can hold the ADDIP header and a par…

EPSS: 0.005 (40.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Linux — versions df21857714398acb8b24a8bb5a6d2286dd9c59ef, 2.6.25, 0
Linux Linux_kernel — versions 7.1

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

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

Frequently asked questions

What is CVE-2026-53225?: CVE-2026-53225 is a critical-severity vulnerability in Linux, classified under Use of Uninitialized Resource. CVSS score: 9.1/10. Published 2026-06-25.
How severe is CVE-2026-53225?: Critical severity. CVSS v3 base score is 9.1 out of 10.