What is CVE-2026-53147?

CVE-2026-53147 is a high-severity vulnerability in Linux, classified under Out-of-bounds Read. CVSS score: 8.1/10. Published 2026-06-25.

How severe is CVE-2026-53147?

High severity. CVSS v3 base score is 8.1 out of 10.

Out-of-bounds Read in Linux

CVE-2026-53147

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Validate XDomain request packet size before type cast tb_xdp_handle_request() casts the received packet buffer to protocol-specific structs without verifyin…

Vulnerability class: Buffer Overflow

EPSS: 0.003 (18.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

Affected products

Linux — versions cdae7c07e3e3509eaabc18c1640a55dc5b99c179, 4.15, 0
Linux Linux_kernel — versions 7.1

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

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)

Frequently asked questions

What is CVE-2026-53147?: CVE-2026-53147 is a high-severity vulnerability in Linux, classified under Out-of-bounds Read. CVSS score: 8.1/10. Published 2026-06-25.
How severe is CVE-2026-53147?: High severity. CVSS v3 base score is 8.1 out of 10.