What is CVE-2026-53055?

CVE-2026-53055 is a critical-severity vulnerability in Linux, classified under Use After Free. CVSS score: 9.8/10. Published 2026-06-24.

How severe is CVE-2026-53055?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Use After Free in Linux

CVE-2026-53055

In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/sec2 - prevent req used-after-free for sec During packet transmission, if the system is under heavy load, the hardware might complete processing the pa…

Vulnerability class: Use-After-Free

EPSS: 0.004 (35.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions f0ae287c50455f7be0d8dd45a803d403c7aa4d2e, 6.17, 0
Linux Linux_kernel

Weakness classification (CWE)

CWE-416 — Use After Free

References

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

Frequently asked questions

What is CVE-2026-53055?: CVE-2026-53055 is a critical-severity vulnerability in Linux, classified under Use After Free. CVSS score: 9.8/10. Published 2026-06-24.
How severe is CVE-2026-53055?: Critical severity. CVSS v3 base score is 9.8 out of 10.